modified coverage handler to use different types
added tests to to test pydap handler
change str to basestring to handle unicode
added test for list and added exception to handle non supported types
making sure that when fetching the notifications back, the retired ones are not picked up
fixed a unit test
Merge pull request #546 from lukecampbell/master

Ion-defs
bumped ion defs and refactored publish_event() and publish_event_obj() of UNS
got test for publish_event_object() working'
Fixed publish_event() and got test for it working
fixed back two tests
fixed test_get_recent_events(). Now just one more test to fix
fixed test_batch_notifications()
using get_ion_ts() throughout UNS
bumped ion defs
referencing the latest ion defs from master after having merged ion defs
Merge branch 'master' into publish_event_obj
Merge pull request #547 from swarbhanu/publish_event_obj

Refactors publish_event() and publish_event_object() of UNS
Merge branch 'master' into fix_delete_notification
Should fix broken CEI tests trying to use _create_event