basic reading of cert from within gcdasync
updated xmpframework for basic cert reading
basic cert pinning for google and facebook
removed old unused cert check
updated submodules
merge master
fixed merge errors
better error message for bad cert
Able to overide and try to connect without validating certs
basic roster storage
merged master
able to understand pending requests and groups
add stirngs to json file
cleanup around getting sub requests
Merge branch 'master' into xmpp-buddies
removed core data xmpp buddy management
moved capabilities to in memory store
Removed xmpp vCard core data. still inconsistent avatar download and appearence
Merge branch 'cert' into 2.2

Conflicts:
	Off the Record.xcodeproj/project.pbxproj
	Off the Record/Strings.h
Merge branch 'xmpp-buddies' into 2.2

Conflicts:
	Off the Record.xcodeproj/project.pbxproj
	Off the Record/OTRXMPPManager.m
	Off the Record/Strings.h
	Off the Record/en.lproj/Localizable.strings
	Off the Record/strings.json