Squashed 'AFNetworking/' changes from c44fc11..5466dd4

5466dd4 Merge remote-tracking branch 'AFNetworking/AFNetworking/master'
bae5eec Adding changes for 2.0.3
b983285 Adding changes for 2.0.2
29c33e4 Adding changes for 2.0.1
f0f6592 Merge remote-tracking branch 'AFNetworking/AFNetworking/master'
3b919da [Issue #1782] Fixing AFHTTPRequestOperationManager to default shouldUseCredentialStorage to YES, as per documentation
bffcb73 Merge branch 'bug/progress-incorrect' of github.com:kylef/AFNetworking into kylef-bug/progress-incorrect
84f47d4 Merge pull request #1769 from kylef/remove-observer
3bdcc39 Merge pull request #1779 from synchromation/master
ebada62 Only remove observer if we're observing
0acd89c Removing Mac Example from the project file
7c9799a Session manager: Fixes a bug with updating download progress
810ef61 Fixed compiler warnings for upcoming version of Xcode

git-subtree-dir: AFNetworking
git-subtree-split: 5466dd4030d8a85b185e1fd320e73a602d4d7e9b
Merge commit 'b45d09357d27a2cc50eceb7fa578554b65e4a3b8'