Update From Rikky

important:
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- name of the Addon-file changed: no space
- 2 new menu items under Tools -> Addons -> Kanji Overlay
- GUI for Add-on configuration added

general:
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- 2 new options: 
	- load default DB in addition to custom
	- disable the color-changes for unknown kanji
- if custom database could not be loaded, the default DB will be loaded
- user can also choose to configure the plugin via python-code (option
available in the top of the add-on)

in-code-changes:
------------------------
- split up the big load()-Function into smaller pieces
- added: reload()-function to reload the plugin
- for Debugging: option for always loading the database (even if no
changes) is available
- loading of kanji-dictionary does not directly load into the
self.kanjidict-variable. It loads to other temporary variables to enable
loading of more than only one database at a time
- GUI is connected to anki via the 'ankiConnection'-class. For the run
without anki or any testcases, there is an 'ankiConnectionMOCK'-class
that holds test/default data

misc:
---------
- GUI can also be run independently for easier debugging