updated ios project for 64bit support and updated Crittercism SDK

-- THIS NEEDS TO BE TESTED --
updated ios project for 64bit support. 
Builds with 3.5.0.RC. 
Bumped minor version.
Updated Crittercism SDK to v5.0.7. 
CrittercismSDK included in module project instead of hard linking to original authors downloads directory. 
this removed ios8 push notification warnings generated by the crittercism library and has bug fixes. does not add any new functionality.