Added support for 64-bit
Removing xcuserdata/
Added better iOS .gitignore
Cleaning up user files
Working Surveys and Notifications

- Upgraded to Mixpanel SDK 4.4.1
- Incl SDK via the respackage method
Merge branch 'master' into feature/android-surveys

Conflicts:
	ios/README.md
	ios/TiMixpanel.xcodeproj/project.xcworkspace/xcshareddata/TiMixpanel.xccheckout
	ios/TiMixpanel.xcodeproj/project.xcworkspace/xcuserdata/timanrebel.xcuserdatad/UserInterfaceState.xcuserstate