Ability to delete a previously entered email Fixes IOS-418
Ability to delete a previously entered email
Fixes IOS-418

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