Merge pull request #4 from khawkins/mobilesdk.unstable

Xcode 5 project settings
Adding a documentation target
Made the output path start at the project directory rather than relative.
Merge pull request #5 from rwhitley/mobilesdk

Adding a documentation target
Removed a reference to readme.markdown
Merge pull request #6 from rwhitley/mobilesdk

Removed a reference to readme.markdown
Merge remote-tracking branch 'origin/mobilesdk' into mobilesdk.unstable