Fixed UrbanAirship: Frameworks

Added required frameworks per UrbanAirship guidelines: https://docs.urbanairship.com/display/DOCS/Getting+Started:+iOS:+Push#GettingStartediOSPush-2DownloadInstallourLibraryFrameworks

libUAirship 1.2 available @ http://com.urbanairship.filereleases.s3.amazonaws.com/libUAirship-1.2.0.zip