MOD: Added the possibility to find OIS if stored as Ogre dependency
MOD: Added the possibility to find OIS if stored as Ogre dependency

--HG--
branch : v0-8

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