Fix podspec OS X deployment target
Merge pull request #5 from irrationalfab/fabio/fix-podspec

Fix podspec OS X deployment target
Moving source files to subdirectory
Adding Xcode workspace
Fixing implicit conversion warning
[Issue #6] Fallback on serialized response object if responseString is not available
Bumping version to 2.0.3
Fixing podspec
Merge upstream into curl