Added simple logging and other
Argument support in edit()
Implemented path as conf parameter
Minor cosmetic fix
Minor fixes
Removed function duplicates
Implemented cancel()
Separated core to tray and issue
Migrated docs
Updated documentation
Updated docs
Added RN for 001
Fixed all RN
Refactored Tray to build Issues on init
Refactoring Tray and Issue

In the middle of the huge refactoring. Most things are broken, although
I've already managed to update core classes' behavior, there is still
much to do.
Refactoring

I've refactored even more classes. Mostly I'm moving as much methods
ass possible from Issue to Tray. Issue methods are accessed trough
Tray methods. I think it's alright.
Finished refactoring

Tweaked all the methods to support the new structure. All previously available
features are back. Though we still could expect some bugs.
Implemented write/read methods for Tray

Implemented Tray.readAll() and Tray.overwriteAll()
Implementes write() in Issue

Implemented write() method for Issue and outsourced some functionality
of Tray.overwriteAll() to there.
Updated documentation

Updated the documentation accordingly to all recent changes.