Fixed button hover animation when using BaseDark
Save tox data to the right location in %appdata%

See also:
https://github.com/Tox/Tox-STS/blob/master/STS.md#client-pathsformats
Well I messed that up...
Updated README.md with some new screenshots
Added tox data portability
Some more check for tox data
Added an 'export' button (for Tox data)
Delete the notifyicon on closing
Prevent Toxy from showing up in the alt-tab menu

(when minimized to tray)
Merge remote-tracking branch 'origin/master' into av