Drop Podfile.lock from Git so that we don't have to deal with updating it as revisions change
[Issue #1181] Using UIImage calculated image orientation

Minor refactoring
Merge pull request #1214 from blakewatters/drop-podfile-lock

Drop Podfile.lock from Git
Merge branch 'master' of github.com:AFNetworking/AFNetworking
Revert "Drop Podfile.lock from Git so that we don't have to deal with updating it as revisions change"

This reverts commit 56625c466eec93182bc385c9ca9a86ff7f1f045f.