Spritebanks can now draw scaled sprites.


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4754 dfc29bdd-3216-0410-991c-e03cc46cb475
IGUIEnvironment::hasFocus can work with a const pointer.


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4755 dfc29bdd-3216-0410-991c-e03cc46cb475
Buttons can now now have 7 more image-states, 1 more sprite-state and the sprites are now scaleable.


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4756 dfc29bdd-3216-0410-991c-e03cc46cb475