* save log messages to otclient.txt
* fixes in FrameBuffer and HardwareBuffer to work with OpenGLES
* possibility to get compilation information from lua (compiler version, build date, build revision, build type)
* make crash handler more informatave
* handle assert crash signals (SIGABRT)
* 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