Changed Orbiter to use AFNetworking 2.0.x

Conflicts:
	Orbiter.podspec
Changed up operation kickoff method

Conflicts:
	.DS_Store
Fix dispatch_queue_t errors
Conflicts:
	Orbiter.podspec
Removing unnecessary @synthesize
Minor reformatting
Fixing use of credential
Merge branch '2.0-merging'

Conflicts:
	Orbiter/Orbiter.m
Bumping version to 2.0.0