Add /party KI Command

Usage: Players type `/party` to be warped to the party. Admins include a
link in point sceneobject parameter to set the warp information in the
vault. Supplying an invalid object (eg `x`) will cause the party to be
killed, disabling the command for players.
Fix RPSGame-UpdateImager
Remove unneeded kFontShadowed flags in the Big KI dialogs.

Shadows are not needed here and exacerbate the x-raying due to wrong drawing order.
Done in Python as long as we can’t modify the PRPs directly.
Merge pull request #80 from cwalther/textrendering

Remove unneeded kFontShadowed flags in the Big KI dialogs
New Update for RPGGame
Implement chat history browsing (Client and Python)
Merge pull request #81 from Filtik/chathistory

Implement chat history browsing (Client and Python)
Merge branch 'master' into party-cmd

Conflicts:
	Python/ki/xKIChat.py
Fix /party issues...

- Change an empty string comparison to a more pythonic expression.
- Fix SpawnPoint mangling--we now link in at the correct spot!
Merge pull request #79 from Filtik/RPSGame-Imager

Fix RPSGame-UpdateImager
Move /party code to "other commands"
nb01EmgrPhase0: Only update the AgeVaultSDL once

This should help prevent race conditions...
ptDynamicMap now takes string and unicode

This fixes a lot of crazy xSimpleImager tracebacks I see on Gehn involving
drawTextW. I assume that xCensor was handing us a string object (vs
unicode) and expecting us to draw that.
Merge pull request #84 from Hoikas/dynamap-string

ptDynamicMap plString-ification
xSimpleImager: Don't grab AgeSDL if no inbox.
Merge pull request #82 from Hoikas/party-cmd

Add Party Command.
Fix chat fade bug.

Here's the rub: we were doing entirely too much manual chugging and
plugging on the chat fade status, so some corner-cases slipped through. In this case, we absolutely DO NOT WANT to start the fade timer if the user has entered any chat (self.chatMgr.isChatting). We were doing just that any time the chat
history display was modified (oops!).

See also:
- http://forum.guildofwriters.org/viewtopic.php?f=117&t=6076
Smoother chat fade...

... The old one was rough like sandpaper and looked like crap. This is
much nicer.
Merge pull request #85 from Hoikas/chatfade

Fix the chat fade bug.
Fix text notes appearing from the Game Master.

This must have been an eap change. It's absolutely insane for that to be
gated by the game master--the game master can EASILY act on the vault node
ref add.

Bonus: I removed dead VaultNotify things.