Merge pull request #375 from CruGlobal/MH-1023

Skip clear_advanced_search in actions to not reset the filtered contacts...
Merge pull request #372 from CruGlobal/MH-1018

Fix duplicate surveys, answers, answer_sheet in transfer contacts
Revise APIv3 to return predefined questions
Merge branch 'MH-1004' into dev
Merge pull request #376 from CruGlobal/MH-1004

Revise APIv3 to return predefined questions
Add new field
Try to capture sms delivery status
Improve sms error handling
Add sms sending status
Reenable phone_number for text messaging when updated
More adjustments
Initialize bulk_message structure
Working now bulk sms process
Refactor bulk sms
Fix problem
More enhancements
Adjust tests
Change notification content
Fix conflicts