Minor reformatting
Fixing error in documentation about defaultSSLPinningMode

Minor copy editing in documentation
Bumping version to 1.2.1

Updating CHANGES for 1.2.1
Workaround for #907.
A GET request for file:///path/to/file URLs has a self.response that does not respond to allHeaderFields because it is an NSURLResponse not an NSHTTPURLResponse
Fixing crasher in AFNetworkActivityIndicatorManager, due to unsafe calls to updateNetworkActivityIndicatorVisibilityDelayed from multiple threads.
Suppressed GNU expression and Enum assignment warnings from clang
Add __unused to stream delegate parameter
Adds explicit type casts where necessary for ObjC++ compilation
Merge pull request #960 from audun/master

Fixed a few minor compilation errors when using ObjC++
Using self.error instead of self.JSONError in AFJSONRequestOperation.
Merge pull request #935 from OliverLetterer/cfstream-race-condition

Workaround for #907.
Merge pull request #966 from OliverLetterer/use-error

Using self.error instead of self.JSONError in AFJSONRequestOperation.
Minor edits to documentation
Merge branch 'master' of github.com:AFNetworking/AFNetworking
don't escape tildes as per http://tools.ietf.org/html/rfc3986#section-2.3
Switched the #warning messages to #pragma message messages instead, so you can still compile the framework with -Werror switched on
Register error if new bodyStream cannot be created
explicitly synthesize properties to eliminate warnings with -Wobjc-missing-property-synthesis
Merge pull request #978 from jeffhunter/master

Explicitly synthesize properties to eliminate warnings with -Wobjc-missing-property-synthesis