Fix some typos

ACKNOWLEDGEMENTS

@@ -1,5 +1,5 @@
 Thanks to Thomas Voegtlin for creating the Electrum software and
-infrastructure and for maintaining it so diligently.  Electrum is the
+infrastructure and for maintaining it so diligently.  Electrum is
 probably the best desktop Bitcoin wallet solution for most users.  My
 faith in it is such that I use Electrum software to store most of my
 Bitcoins.

HOWTO.rst

@@ -247,7 +247,7 @@ this:
 
 These are just informational messages about addresses that have very
 large histories that are generated as those histories are being
-written outt.  After the flush has completed a few stats are printed
+written out.  After the flush has completed a few stats are printed
 about cache hits, the number of writes and deletes, and the number of
 writes that were elided by the cache::
 
@@ -261,7 +261,7 @@ You may see one or two logs about ambiguous UTXOs or hash160s::
 
     2016-10-08 07:24:34.068609500 INFO:DB:UTXO compressed key collision at height 252943 utxo 115cc1408e5321636675a8fcecd204661a6f27b4b7482b1b7c4402ca4b94b72f / 1
 
-These are an informational message about artefact of the compression
+These are informational messages about an artefact of the compression
 scheme ElectrumX uses and are harmless.  However, if you see more than
 a handful of these, particularly close together, something is very
 wrong and your DB is probably corrupt.

README.rst

@@ -110,7 +110,7 @@ Miscellany
 
 As I've been researching where the time is going during block chain
 indexing and how various cache sizes and hardware choices affect it,
-I'd appreciate it if anyone trying to synchronize could tell me their::
+I'd appreciate it if anyone trying to synchronize could tell me::
 
   - their O/S and filesystem
   - their hardware (CPU name and speed, RAM, and disk kind)

lib/coins.py

@@ -1,4 +1,4 @@
-# See the file "COPYING" for information about the copyright
+# See the file "LICENSE" for information about the copyright
 # and warranty status of this software.
 
 

lib/hash.py

@@ -1,4 +1,4 @@
-# See the file "COPYING" for information about the copyright
+# See the file "LICENSE" for information about the copyright
 # and warranty status of this software.
 
 import hashlib

lib/script.py

@@ -1,4 +1,4 @@
-# See the file "COPYING" for information about the copyright
+# See the file "LICENSE" for information about the copyright
 # and warranty status of this software.
 
 from binascii import hexlify

lib/tx.py

@@ -1,4 +1,4 @@
-# See the file "COPYING" for information about the copyright
+# See the file "LICENSE" for information about the copyright
 # and warranty status of this software.
 
 from collections import namedtuple

lib/util.py

@@ -1,4 +1,4 @@
-# See the file "COPYING" for information about the copyright
+# See the file "LICENSE" for information about the copyright
 # and warranty status of this software.
 
 

server/db.py

@@ -1,4 +1,4 @@
-# See the file "COPYING" for information about the copyright
+# See the file "LICENSE" for information about the copyright
 # and warranty status of this software.
 
 import array

server/env.py

@@ -1,4 +1,4 @@
-# See the file "COPYING" for information about the copyright
+# See the file "LICENSE" for information about the copyright
 # and warranty status of this software.
 
 import logging

server/server.py

@@ -1,4 +1,4 @@
-# See the file "COPYING" for information about the copyright
+# See the file "LICENSE" for information about the copyright
 # and warranty status of this software.
 
 import asyncio

server_main.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 
-# See the file "COPYING" for information about the copyright
+# See the file "LICENSE" for information about the copyright
 # and warranty status of this software.
 
 import asyncio