Fixed issues when trying to cross compile with MinGW.
Added some checks for JATTA_USE_PNG and JATTA_USE_JPEG.
Started working on a "Modules" system to expand on Jatta.  Created a test folder to check which C++ features the compiler supports.
Merge branch 'master' of github.com:Zethes/Jatta

Conflicts:
	src/Jatta/Images/Image.h