WTP Familiars EE v2.5

Updated to match original up to v2.5:

-Fixed critical bug with Rabbit crashing the game when asked to return to backpack (thanks Chitown Willie)
-Fixed critical bug with familiars not levelling up more than once (thanks enkku)
-Fixed minor bug with empowered familiar not showing the correct name at the end of the dialogue-based level up process
-The level up process now shows the amount of XP the familiar has gained
-Updated WeiDU to version 246
-Fixed a few minor issues in replacing Player1 by %famsummoner%
-Combined large amounts of consecutive StateChecks on the same creature by use of bitmasks.