show proper title based on account type
also hide password field if provided (as with OAuth)
set the title on account activity dialog
improve handling of setting up new account for group chat
parsing gets to add account now, still some issue with showing dialog
Update build instructions due to MessageBar lossage
no OTR for group chats

prevents auto-negotiation with self
muc: show our own messages just once
Merge pull request #258 from n8fr8/feature_account_setup

Feature account setup
Merge pull request #259 from devrandom/muc1

MUC fixes
data: pass mime type through
Merge branch 'upstream' into filexfer-v12

Conflicts:
	src/info/guardianproject/otr/OtrChatListener.java
	src/info/guardianproject/otr/app/im/app/ImUrlActivity.java