fixed warning.
added caching of SectionTypes to get around jpa bug.
Changes temporal type so also get the time the activity was created.
Got the SectionElgibility working properly.
Add logic to detach tags when deleting a contact.
Correctly linked the activity list to the activity table so it correctly
cascade deletes.
remove explict setting of the activity date as it is set by the ctor.
tweaked the ui so the editor takes up all remaing space.
got section eligibility working correctly.
removed unused import.
unused at this point but convertors for joda date/time.
work on getting section eligibility to work correctly.