fixed a compiler warning and make the interface compliant to the implementation
Merge pull request #374 from jonasman/master

fixed a compiler warning and make the interface compliant to the implementation
Upgraded CocoaLumberjack to version 1.8.1
Xcode Projects update to Support CocoaLumberjack 1.8.1
Added a stored, thread safe NSDateFormatter instead of creating a new date formatter everytime one is needed
SCRAM-SHA1: Normalize password with resourceprep profile
SCRAM-SHA-1: finally choose SASLprep profile
Merge pull request #378 from vitalyster/scramfix

SCRAM-SHA-1 implementation using wrong stringprep profile when normalizing passwords
Fixed change nickname may cause occupants duplicated issue

User A joined chatroom, then user B joined chatroom. If user A changed his nickname, it may cause duplicated occupants.
Merge pull request #384 from kaojohnny/dev

Fixed change nickname may cause occupants duplicated issue
Merging latest changes from CocoaAsyncSocket project (GCDAsyncSocket compiler warnings fixed)
Adding a few missing methods to the NSXMLElement category.
Fixing a few compiler warnings in the sample project
Merge branch 'master' of github.com:robbiehanson/XMPPFramework
XEP-0280: Message Carbons
Fixed Some of the Test Projects
Bug fix: XMPPStream was not honoring modified presence stanzas via xmppStream:willSendPresence:. This only affected delegates that made copies of the passed presence element, or returned completely different presence elements.
Bug fix: XMPPStream wasn't invoking delegate method xmppStream:didFailToSendX: in all situations.
Adding 2 methods to XMPPModule: didActivate & didDeactivate. These methods are easier (and simpler) for subclasses to override, compared to the original activate & deactivate methods.
Merge branch 'master' of github.com:robbiehanson/XMPPFramework