Have all headers added to project and use file groups, suggested by Mr. Meindl
Have all headers added to project and use file groups, suggested by Mr. Meindl

--HG--
branch : v0-8

cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two