Merge pull request #19 from bambudo/master

css: hex string parsing
fixed nuiLayout!
fixed nuiAnchorType attribute handling
removed forced logs
added new nuiLayout modes
better handling for non quoted CSS values
fixed widget death in some complex cases
tarted to fix nuiSurface in GL2
fixed nuiObject::SetProperty by changing nuiObject::AddAttribute to handle instance attributes
nuiGL2Painter inherits from nuiGLPainter
changed init of ALL nuiPainters (no more rect given to the ctor)
the nuiDrawContext doesn't create its painter anymore: it uses one that is created by the nglContext for the nglWindow.
moved many things around.
fixed OpenGL 1 renderer.
still some bugs in GL2
fixed rendering problems with nuiSurface for GL and GL2
fixed texture font size in HighDPI
WIP
WIP!!!
fixed iOS GL 2 rectangle textures support!
added textures and fbo names to the debugger in order to be able to see their names in Xcode's debugger
added multi monitor support for retina display, hopefully
fixed retina for iOS
added way to turn off blending for sprites
started to fix moving window in between retina and non retina displays
added support for non standard vertex streams in nuiRenderArray