Added default param to _submit_transport_instance to allow spcifying which instance index to submit
Test to make sure deleted submission downt show up in exports
Test to make sure edits dont create duplicates within mongo and the data is actually updated
Merge pull request #890 from modilabs/edited_deleted_records_in_exports

Test that deleted submissions dont appear in exports while edited submissions appear correctly in exports
Merge branch 'master' into 818_mongo_data_inconsistency
Set remongo to update synchronously
Added all option to sync_mongo to delete and re-create a forms mongo instances
Added test to check all option deletes and re-creates