Minor copy edit to AFURLSessionManager documentation
Adding link to migration guide
Listen for task start/finish notifiations in AFNetworkingActivityIndicatorManager
Deprecating methods with path: parameter, replacing with URLString variants, since baseURL is now optional
Better aligning implementation details of SSE parsing to spec
Adding NSCoding & NSCopying support to AFServerSentEvent
Adding NSCoding and NSCopying support to AFEventSource
Documenting Event Source APIs

Adding identifier to event source listeners
Adding remaining documentation for AFEventSource
Adding documentation for AFJSONPatchSerializer
Adding documentation to AFHTTPClient+Rocket