removed Reactive Cocoa submodule
use ReactiveCocoa v0.16.1 from pods
fixed CreatingObservables
fixed RxOperators
fixed Events
fixed Scheduler
fixed AFNetworking
fixed login sample
twitter search storyboard
fix location manager
fixed twitter search
Merge pull request #1 from prabirshrestha/pods

updated ReactiveCoca to v0.16.1 and use pods for RAC