add get data for dds response

add get data for dds response
Updated geo_utils.py to calculate midpoints
Updated GeoUtils to calculate midpoint
Adds has_lookup_values function to pubsub
Fixes has_lookup_values in pubsub
Some more cleaning up of has_lookup_values
Bumps ion-defs, adds test for has_lookup_values
Updated GeoUtils to calculate midpoint
CRUD ops for parsers
Bumps ion-defs
Added monitor greenlet to Vis Service to clean up dead user real time queues
Merge pull request #787 from shenrie/master

Added monitor greenlet to Vis Service to clean up dead user real time queues
just-in-time configuration building and timing info added to cache function
_augment_dict: if new value == old value, still log something
merge upstream/master
Merge pull request #5 from ifreecarve/2013-03-26_predicate_caching_timing

just-in-time configuration building and timing info added to cache function
Added resource registry helper with dump to xls function
Event persister refreshes event view regularly
Refactored parse util functions out of ion_loader
Bumped ion-definitions with latest OOI assets