Version bump

* Locales: Now falls back to system default language when not found in dict
* Core: Added lots of hooks for custom custom integration stuff
* Core: Removed _addEvent() and migrated code
* CoreWM: Moved some code from Core, some abstraction updates
* Utils: Added middle button detection to mouseButton()
* Misc: Moved some MIME stuff around
* Misc: Console messages now removed from dist builds
* Misc: Google Closure Compiler now default for Core