Upgrading GCDAsyncSocket to 7.4 branch, commit 5aa4d2145570ec0cd107e508ca0799b2df0dbabe
Fixing / upgrading Xcode projects
Adding support for SSL pinning. Fixes issue #333
Fixing sample projects to use new TLS certificate evaluation callback style.
Added element ID when requesting vCards
NSFetchedResultsController predicate updating
Merge pull request #366 from stephenwoodford/master

NSFetchedResultsController predicate updating
Merge pull request #362 from jonasman/master

Added element ID when requesting vCards
Merge branch 'master' into release and update cert pinning

Conflicts:
	Core/XMPPStream.h
	Core/XMPPStream.m
	Vendor/CocoaAsyncSocket
	Vendor/CocoaAsyncSocket/GCDAsyncSocket.h
	Vendor/CocoaAsyncSocket/GCDAsyncSocket.m