[OGRE-288] Make sure that the state cache is initialized. Especially for the case when options are changed and we call reinitialize.
[OGRE-288] Make sure that the state cache is initialized. Especially for the case when options are changed and we call reinitialize.

--HG--
branch : v1-9

digimatic/ogre,digimatic/ogre,digimatic/ogre,digimatic/ogre,digimatic/ogre,digimatic/ogre,digimatic/ogre