Removed old CCFontDefinition
Updated labels
Makes CCLabelTTF's textures dirty when updating labels and only re-renders the texture when visiting the node
CCLabelTTF now works on iOS
Fixes shadow for CCLabelTTF on iOS
Added category with additions to NSAttributedString
Adds retina support to new CCLabelTTF
Adds support for alpha channel only labels (if no shadow or color has been set)
Cleaned up CCLabelTTF code
Cleaned up code and correctly handles dimension on retina and horizontal alignments
Made Text extension of CCTexture2D private to CCLabelTTF
Fixes vertical text alignment
Removed category to CCTexture2d for clarity
Labels now scales to fit
Added helper methods to NSAtttributedString
Updated label tests and project settings
Fixes issue with premultiplied alpha and cleans up code
Adds support for base line adjustments
Setup special render function for iOS 5 (not yet implemented)
Label works on iOS, except shadows and color