Adding AFHTTPClient+ServerSentEvents
Fixing errors detected while building on OS X 10.9
Merge branch '2.0' of github.com:AFNetworking/AFNetworking into 2.0
Transfer headers to request during request serialization
Merge pull request #1165 from acf/2.0

Transfer headers to request during request serialization
Merge branch '2.0' of github.com:AFNetworking/AFNetworking into 2.0
[Issue #1165] Refactoring pull request
Minor changes to initializers

Minor reformatting
Allow nil baseURL

Resolving base initialzation methods to designated initializers
Removing k from constant name