More string changes for the orca module.

[Rich Burridge <Rich Burridge Sun COM>]

Per the "String Announcement Period" request in the July 10th
entry on the GNOME 2.15 release planning web page
( http://live.gnome.org/TwoPointFifteen ), this is to inform you
that we've made some more string changes in the orca module.

The .../src/orca/scripts/gaim.py file has the following new strings:

"Toggle whether we prefix chat room messages with the name of the chat room."
"speak chat room name."
"Don't "
"Message from chat room "

Thanks.