MOBSDK-302

- Added target for Mac OS X - AlfrescoSDK-OSX
- Renamed target for iOS - AlfrescoSDK-iOS
- Addition of AlfrescoOAuthNSLoginViewController
- Deprecated AlfrescoOAuthLoginViewController with AlfrescoOAuthUILoginViewController
- Added Mac OS X builds for CMIS following local patches for https://issues.apache.org/jira/browse/CMIS-831
- Fixed build scripts to include mac target builds of libraries and frameworks
    - scripts can now also be run with a space in the folder path


There is a LOT of shared copy/pasted code in this file and the Mac version, please re-factor where possible to use a common helper class (sub class would be ideal but unfortunately not possible). We already have an OAuthHelper class maybe more functionality can move into that so we only have one place to fix logic bugs should they arise.