diff --git a/docs/build/.DS_Store b/docs/build/.DS_Store
deleted file mode 100644
index 5a6a847..0000000
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index dfee24b..798b958 100644
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index 4ca55e4..d7323e1 100644
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index febcf2e..76d2057 100644
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index e99cc93..f95cc19 100644
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index 2a7d494..92b98f6 100644
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diff --git a/docs/build/doctrees/examples.doctree b/docs/build/doctrees/examples.doctree
index 57742da..21bc073 100644
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diff --git a/docs/build/doctrees/functional.doctree b/docs/build/doctrees/functional.doctree
index 196208c..695a060 100644
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diff --git a/docs/build/doctrees/index.doctree b/docs/build/doctrees/index.doctree
index 7d07e3a..c34f012 100644
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diff --git a/docs/build/doctrees/installation.doctree b/docs/build/doctrees/installation.doctree
index 79a0bd1..86f153b 100644
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diff --git a/docs/build/doctrees/transaction.doctree b/docs/build/doctrees/transaction.doctree
index 823236d..eff737f 100644
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diff --git a/docs/build/html/_modules/index.html b/docs/build/html/_modules/index.html
index a3a5074..333192c 100644
--- a/docs/build/html/_modules/index.html
+++ b/docs/build/html/_modules/index.html
@@ -105,7 +105,7 @@
       
       |
       Powered by <a href="http://sphinx-doc.org/">Sphinx 1.7.5</a>
-      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.10</a>
+      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.11</a>
       
     </div>
 
diff --git a/docs/build/html/_modules/pybtc/address.html b/docs/build/html/_modules/pybtc/address.html
index 8dd34be..cf20458 100644
--- a/docs/build/html/_modules/pybtc/address.html
+++ b/docs/build/html/_modules/pybtc/address.html
@@ -322,7 +322,7 @@
       
       |
       Powered by <a href="http://sphinx-doc.org/">Sphinx 1.7.5</a>
-      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.10</a>
+      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.11</a>
       
     </div>
 
diff --git a/docs/build/html/_modules/pybtc/block.html b/docs/build/html/_modules/pybtc/block.html
index 0c995c0..a72db53 100644
--- a/docs/build/html/_modules/pybtc/block.html
+++ b/docs/build/html/_modules/pybtc/block.html
@@ -131,7 +131,7 @@
       
       |
       Powered by <a href="http://sphinx-doc.org/">Sphinx 1.7.5</a>
-      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.10</a>
+      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.11</a>
       
     </div>
 
diff --git a/docs/build/html/_modules/pybtc/tools.html b/docs/build/html/_modules/pybtc/tools.html
index a04bb64..03aa0e7 100644
--- a/docs/build/html/_modules/pybtc/tools.html
+++ b/docs/build/html/_modules/pybtc/tools.html
@@ -1408,7 +1408,7 @@
       
       |
       Powered by <a href="http://sphinx-doc.org/">Sphinx 1.7.5</a>
-      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.10</a>
+      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.11</a>
       
     </div>
 
diff --git a/docs/build/html/_modules/pybtc/transaction.html b/docs/build/html/_modules/pybtc/transaction.html
index 1da5271..2f5a626 100644
--- a/docs/build/html/_modules/pybtc/transaction.html
+++ b/docs/build/html/_modules/pybtc/transaction.html
@@ -752,7 +752,7 @@
       
       |
       Powered by <a href="http://sphinx-doc.org/">Sphinx 1.7.5</a>
-      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.10</a>
+      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.11</a>
       
     </div>
 
diff --git a/docs/build/html/_static/pybtc.png b/docs/build/html/_static/pybtc.png
new file mode 100644
index 0000000..21a2da2
Binary files /dev/null and b/docs/build/html/_static/pybtc.png differ
diff --git a/docs/build/html/address.html b/docs/build/html/address.html
index e873d69..a0a3c35 100644
--- a/docs/build/html/address.html
+++ b/docs/build/html/address.html
@@ -333,7 +333,7 @@ already contain in initial key parameter and will be ignored.</p>
       
       |
       Powered by <a href="http://sphinx-doc.org/">Sphinx 1.7.5</a>
-      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.10</a>
+      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.11</a>
       
       |
       <a href="_sources/address.rst.txt"
diff --git a/docs/build/html/block.html b/docs/build/html/block.html
index 91734e8..087000e 100644
--- a/docs/build/html/block.html
+++ b/docs/build/html/block.html
@@ -120,7 +120,7 @@
       
       |
       Powered by <a href="http://sphinx-doc.org/">Sphinx 1.7.5</a>
-      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.10</a>
+      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.11</a>
       
       |
       <a href="_sources/block.rst.txt"
diff --git a/docs/build/html/classes.html b/docs/build/html/classes.html
index fe429aa..099a0ef 100644
--- a/docs/build/html/classes.html
+++ b/docs/build/html/classes.html
@@ -119,7 +119,7 @@
       
       |
       Powered by <a href="http://sphinx-doc.org/">Sphinx 1.7.5</a>
-      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.10</a>
+      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.11</a>
       
       |
       <a href="_sources/classes.rst.txt"
diff --git a/docs/build/html/contributing.html b/docs/build/html/contributing.html
index e7ea24e..e7e6d5c 100644
--- a/docs/build/html/contributing.html
+++ b/docs/build/html/contributing.html
@@ -130,7 +130,7 @@ All tests located in <code class="docutils literal notranslate"><span class="pre
       
       |
       Powered by <a href="http://sphinx-doc.org/">Sphinx 1.7.5</a>
-      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.10</a>
+      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.11</a>
       
       |
       <a href="_sources/contributing.rst.txt"
diff --git a/docs/build/html/examples.html b/docs/build/html/examples.html
index 16fa80f..7c4fff0 100644
--- a/docs/build/html/examples.html
+++ b/docs/build/html/examples.html
@@ -206,7 +206,7 @@ True
       
       |
       Powered by <a href="http://sphinx-doc.org/">Sphinx 1.7.5</a>
-      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.10</a>
+      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.11</a>
       
       |
       <a href="_sources/examples.rst.txt"
diff --git a/docs/build/html/functional.html b/docs/build/html/functional.html
index 6d8ea1b..69bc7aa 100644
--- a/docs/build/html/functional.html
+++ b/docs/build/html/functional.html
@@ -961,7 +961,7 @@ address format use None.</li>
       
       |
       Powered by <a href="http://sphinx-doc.org/">Sphinx 1.7.5</a>
-      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.10</a>
+      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.11</a>
       
       |
       <a href="_sources/functional.rst.txt"
diff --git a/docs/build/html/genindex.html b/docs/build/html/genindex.html
index 28c345b..cf68b77 100644
--- a/docs/build/html/genindex.html
+++ b/docs/build/html/genindex.html
@@ -378,7 +378,7 @@
       
       |
       Powered by <a href="http://sphinx-doc.org/">Sphinx 1.7.5</a>
-      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.10</a>
+      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.11</a>
       
     </div>
 
diff --git a/docs/build/html/index.html b/docs/build/html/index.html
index 70c0247..d1ff280 100644
--- a/docs/build/html/index.html
+++ b/docs/build/html/index.html
@@ -208,7 +208,7 @@ or have some suggestion in order to improve the library.</p>
       
       |
       Powered by <a href="http://sphinx-doc.org/">Sphinx 1.7.5</a>
-      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.10</a>
+      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.11</a>
       
       |
       <a href="_sources/index.rst.txt"
diff --git a/docs/build/html/installation.html b/docs/build/html/installation.html
index 4aac1f0..095be9a 100644
--- a/docs/build/html/installation.html
+++ b/docs/build/html/installation.html
@@ -132,7 +132,7 @@ $ python3 setup.py install
       
       |
       Powered by <a href="http://sphinx-doc.org/">Sphinx 1.7.5</a>
-      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.10</a>
+      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.11</a>
       
       |
       <a href="_sources/installation.rst.txt"
diff --git a/docs/build/html/search.html b/docs/build/html/search.html
index 4825435..6172721 100644
--- a/docs/build/html/search.html
+++ b/docs/build/html/search.html
@@ -118,7 +118,7 @@
       
       |
       Powered by <a href="http://sphinx-doc.org/">Sphinx 1.7.5</a>
-      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.10</a>
+      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.11</a>
       
     </div>
 
diff --git a/docs/build/html/transaction.html b/docs/build/html/transaction.html
index 1cb7eb5..e450a7b 100644
--- a/docs/build/html/transaction.html
+++ b/docs/build/html/transaction.html
@@ -120,7 +120,7 @@
       
       |
       Powered by <a href="http://sphinx-doc.org/">Sphinx 1.7.5</a>
-      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.10</a>
+      &amp; <a href="https://github.com/bitprophet/alabaster">Alabaster 0.7.11</a>
       
       |
       <a href="_sources/transaction.rst.txt"
diff --git a/docs/source/conf.py.old b/docs/source/conf.py.old
new file mode 100644
index 0000000..c68f7fc
--- /dev/null
+++ b/docs/source/conf.py.old
@@ -0,0 +1,216 @@
+# -*- coding: utf-8 -*-
+#
+# Configuration file for the Sphinx documentation builder.
+#
+# This file does only contain a selection of the most common options. For a
+# full list see the documentation:
+# http://www.sphinx-doc.org/en/master/config
+
+# -- Path setup --------------------------------------------------------------
+
+# If extensions (or modules to document with autodoc) are in another directory,
+# add these directories to sys.path here. If the directory is relative to the
+# documentation root, use os.path.abspath to make it absolute, like shown here.
+#
+import os
+import sys
+from sphinx.ext.autodoc import (
+    ClassLevelDocumenter, InstanceAttributeDocumenter)
+
+
+sys.path.insert(0, os.path.abspath('.'))
+sys.path.insert(0, os.path.abspath('..'))
+sys.path.insert(0, os.path.abspath('../_static/'))
+sys.path.insert(0, os.path.abspath('../../_static/'))
+sys.path.insert(0, os.path.abspath('../../pybtc/'))
+sys.path.insert(0, os.path.abspath('../../pybtc'))
+sys.path.insert(0, os.path.abspath('./_static/'))
+
+sys.path.insert(0, os.path.abspath('..'))
+sys.path.insert(0, os.path.abspath('../..'))
+# -- Project information -----------------------------------------------------
+
+project = 'pybtc'
+copyright = '2015-2018, bitaps.com'
+author = 'Aleksey Karpov'
+
+
+def iad_add_directive_header(self, sig):
+    ClassLevelDocumenter.add_directive_header(self, sig)
+
+InstanceAttributeDocumenter.add_directive_header = iad_add_directive_header
+
+# The short X.Y version
+version = ''
+# The full version, including alpha/beta/rc tags
+release = ''
+
+
+# -- General configuration ---------------------------------------------------
+
+# If your documentation needs a minimal Sphinx version, state it here.
+#
+# needs_sphinx = '1.0'
+
+# Add any Sphinx extension module names here, as strings. They can be
+# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
+# ones.
+extensions = [
+    'sphinx.ext.autodoc',
+    'sphinx.ext.doctest',
+    'sphinx.ext.intersphinx',
+    'sphinx.ext.todo',
+    'sphinx.ext.coverage',
+    'sphinx.ext.mathjax',
+    'sphinx.ext.ifconfig',
+    'sphinx.ext.viewcode',
+    'sphinx.ext.githubpages',
+]
+
+# Add any paths that contain templates here, relative to this directory.
+templates_path = ['_templates']
+
+# The suffix(es) of source filenames.
+# You can specify multiple suffix as a list of string:
+#
+# source_suffix = ['.rst', '.md']
+source_suffix = '.rst'
+
+# The master toctree document.
+master_doc = 'index'
+
+# The language for content autogenerated by Sphinx. Refer to documentation
+# for a list of supported languages.
+#
+# This is also used if you do content translation via gettext catalogs.
+# Usually you set "language" from the command line for these cases.
+language = None
+
+# List of patterns, relative to source directory, that match files and
+# directories to ignore when looking for source files.
+# This pattern also affects html_static_path and html_extra_path .
+exclude_patterns = []
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = 'sphinx'
+
+
+# -- Options for HTML output -------------------------------------------------
+
+# The theme to use for HTML and HTML Help pages.  See the documentation for
+# a list of builtin themes.
+#
+html_theme = 'alabaster'
+
+html_theme_options = {
+    'logo': 'pybtc.png',
+    'description': ' ',
+    'github_banner': True,
+    'github_button': True,
+    'github_user': 'bitaps-com',
+    'github_repo': 'pybtc',
+    'page_width': '1100px',
+    'caption_font_family': "sans-serif",
+    'font_family': "sans-serif",
+    'font_size': '16px'
+}
+
+html_sidebars = {
+    '**': [
+        'about.html',
+        'navigation.html',
+        'relations.html',
+        'searchbox.html',
+        'donate.html',
+    ]
+}
+# Theme options are theme-specific and customize the look and feel of a theme
+# further.  For a list of options available for each theme, see the
+# documentation.
+#
+# html_theme_options = {}
+
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+html_static_path = ['_static']
+
+# Custom sidebar templates, must be a dictionary that maps document names
+# to template names.
+#
+# The default sidebars (for documents that don't match any pattern) are
+# defined by theme itself.  Builtin themes are using these templates by
+# default: ``['localtoc.html', 'relations.html', 'sourcelink.html',
+# 'searchbox.html']``.
+#
+# html_sidebars = {}
+
+
+# -- Options for HTMLHelp output ---------------------------------------------
+
+# Output file base name for HTML help builder.
+htmlhelp_basename = 'pybtcdoc'
+
+
+# -- Options for LaTeX output ------------------------------------------------
+
+latex_elements = {
+    # The paper size ('letterpaper' or 'a4paper').
+    #
+    # 'papersize': 'letterpaper',
+
+    # The font size ('10pt', '11pt' or '12pt').
+    #
+    # 'pointsize': '10pt',
+
+    # Additional stuff for the LaTeX preamble.
+    #
+    # 'preamble': '',
+
+    # Latex figure (float) alignment
+    #
+    # 'figure_align': 'htbp',
+}
+
+# Grouping the document tree into LaTeX files. List of tuples
+# (source start file, target name, title,
+#  author, documentclass [howto, manual, or own class]).
+latex_documents = [
+    (master_doc, 'pybtc.tex', 'pybtc Documentation',
+     'Aleksey Karpov', 'manual'),
+]
+
+
+# -- Options for manual page output ------------------------------------------
+
+# One entry per manual page. List of tuples
+# (source start file, name, description, authors, manual section).
+man_pages = [
+    (master_doc, 'pybtc', 'pybtc Documentation',
+     [author], 1)
+]
+
+
+# -- Options for Texinfo output ----------------------------------------------
+
+# Grouping the document tree into Texinfo files. List of tuples
+# (source start file, target name, title, author,
+#  dir menu entry, description, category)
+texinfo_documents = [
+    (master_doc, 'pybtc', 'pybtc Documentation',
+     author, 'pybtc', 'One line description of project.',
+     'Miscellaneous'),
+]
+
+
+# -- Extension configuration -------------------------------------------------
+
+# -- Options for intersphinx extension ---------------------------------------
+
+# Example configuration for intersphinx: refer to the Python standard library.
+intersphinx_mapping = {'https://docs.python.org/': None}
+
+# -- Options for todo extension ----------------------------------------------
+
+# If true, `todo` and `todoList` produce output, else they produce nothing.
+todo_include_todos = True
\ No newline at end of file