VOL-17 - Creating volunteer_role_id custom field to store roles in the Activity record.
Merge pull request #116 from davecivicrm/VOL-17

VOL-17 - Creating volunteer_role_id custom field to store roles in the A...
VOL-17 - set volunteer_role_id based on need, also fix duration/time_completed pair
Fix undefined var
Simplify volunteerActivityTypeId lookup
Merge pull request #117 from colemanw/master

VOL-17 - set volunteer_role_id based on need, also fix duration/time_completed pair