* Modified findblocks cron
* Modified notifications cron for new structure
* Improved notification class
* Added new template for new_block type
* Moved idle_worker type template
* Added new_block type to notification settings
* Adding new SQL upgrade for notifications
* Added support for per user notification settings
* Added account_id to notifications table
* Added new notification_settings table
* Added new account page: notifications
Addresses #144
* Adjusted blockupdate cronjob
* Fetch block information via `gettransaction`
* Adjusted block class
* Only getAllUnconfirmed where confirmations > -1
* Adjusted transaction class
* added setOrphan method to mark orphaned transactions
* If block is orphaned
* Mark all related transactions as Orphan_*type*
* Set confirmations of block to -1 so it is ignored and marked as orphan
* Change transaction template, added listing for orphan transactions
* Add orphan status to block listings template