Merge pull request #18 from thefinestsieve/beta

Conversion and West African tweaks
Moved Backgrounds Back to Immersion
Added in Sogdian Colony province modifier localization
Moved avatars.gfx back to Immersion

The Last Airbender
Silk Road historical events tweaking
Deleted extra battle_events.txt copies
Again removed errant apostrophe
Indian Jewish culture reference fix
Commented null event in religion_heresies
Silk Road event fixes
Minor Finnish Pagan Event cleanup
Untangled the conversion decisions snarl
Latinokratia decision fixes
Misc Religion decision fixes
Fixed my d_israel booboo