* removed classes managed by CInstanceManager
except for CObject, CPyro, CBrain and CPhysics
because of dependencies
* refactored instance searching to use existing singleton instances of
CApplication, CEngine and CRobotMain and calling their getter
functions
* include fixes
* syntax fixes for MinGW
* fixed encoding of restext.cpp
* temporary fix for MinGW in joystick.cpp
Successfully compiles under MinGW :)