* Split game module into game and game_interface
* Move core_lib to corelib
* Move miniwindow to corelib
* Introduce init.lua script for initializing the client, giving much more flexibility
* OTClient is no longer Application derived and is much simpler
* show otclient version in background
* disable about module (don't really need it)
* new function for formating strings like sprintf, Fw::formatString
* new nice background (taken from RPG maker XV)
* update contact information in README
* fix text rendering issues with opacity