Squashed 'AFNetworking/' changes from f4a0efb..cc2bf50

cc2bf50 Merge remote-tracking branch 'AFNetworking/AFNetworking/master'
8bd9d47 Merge branch 'master' of github.com:AFNetworking/AFNetworking
15a8cdb [Issue #1754] Fixing regression in 7514ecf4d9f5, causing inflated images to have the incorrect orientation
d8e8774 Merge pull request #1817 from mneorr/fix_travis
73f92a6 [Issue #1398] Adding requestWithMultipartFormRequest:writingStreamContentsToFile:completionHandler: as a workaround for a bug in NSURLSession that removes the Content-Length header from streamed requests
942e9c5 don't fail if OSX never run
4da8c2f clean up Rakefile, run OSX tests only on >= Mavericks
f33d9cc Fixing unused parameter warning rather than ignoring it
5f4b554 use FileUtils instead of String manipulation
33c9595 Minor formatting
856393f Merge branch 'master' of github.com:AFNetworking/AFNetworking
d34974a Merge pull request #1558 from TechSmith/feature/needNewBodyStreamBlockSetter
80ce1a7 [Issue #1705] Adding documentation about UIWebView category and implementing UIWebViewDelegate
7fa79de remove brew update, s/test:ios/test
a338317 Merge branch 'master' into feature/needNewBodyStreamBlockSetter
17871c1 Adding a setter to set the block associated with the delegate call for getting a new NSInputStream

git-subtree-dir: AFNetworking
git-subtree-split: cc2bf50738f2410790db1656d1f4bb233f6d65bf
Merge commit '4aafc48d541262d943d44362938785c3e4094183'