Some README fixes :
 - CocoaPods no longer generates the docset automatically
 - Some presentation fixes to better fit github's markdown
Fixed crash when stub with very long data and no delay for response
Add missing free call
Fixed crash when stub with very long data and no delay for response (fixes #57 #59)
Tests are now testing against AFNetworking 2.2.3.

Note: Unfortunately we still have to use OCUnit/SenTestKit and can't migrate to XCTest because XCTest requires a deployment target of iOS7+
Storing stub upon the instantiation of OHHTTPStubsProtocol to avoid race conditions (should hopefully fix #51)
Updated README, moved CHANGELOG from wiki to a file, bumped to version 3.1.1
README: Adding Cocoapods version & platform badges + links to the Help Topics / Wiki pages
README: Fixing badges and final tweaks
Fix broken link
Merge pull request #61 from hpique/patch-1

Fix broken link in README
Merge pull request #62 from hpique/master

Don't override Content-Length in initializer if already set
Merge pull request #1 from AliSoftware/master

Update from AliSoftware:master