Fixed several bugs with assigning tasks
Updated several references to picture properties to read from picture jsons
Added TagData.PICTURE to name mappings
Construct members gallery using users join query
Infrastructure for recording outstanding entries for tag member added/removed
Remove reference to TagData.MEMBERS in CalendarAlarmListCreator and ReminderDialog
Removed several references to TagData.MEMBERS in TagSettingsActivity. Still need to figure out how to detect member added/removed
Implement join with the users table for showing user images in the task adapter
Show list members by email in tag view fragment