Fixes IOS-196 Add ARM 64 architecture support
Fixes IOS-196 Add ARM 64 architecture support

This adds 64 bit ARM and simulator slices to our fat static binaries.

apptentive/apptentive-ios,sahara108/apptentive-ios,hibu/apptentive-ios,Jawbone/apptentive-ios,apptentive/apptentive-ios,apptentive/apptentive-ios,hibu/apptentive-ios,ALHariPrasad/apptentive-ios,Jawbone/apptentive-ios,sahara108/apptentive-ios,hibu/apptentive-ios,ALHariPrasad/apptentive-ios