added class record verifier
additional check for using the same attribute twice in a class
added faction record verifier
added missing attribute columns to faction table
MWWorld::Player cleanup
moved the CellRef struct to its own header
some cleanup
replaced an include with a forward declaration
removed another redundant include
Merge remote-tracking branch 'scrawl/master'
If alpha rejection was forced, we also need to force depth_write and depth_check