Adding reconciled send_status to usage report
Make public outbound bandwidth field have a default value of 0 instead of null.
Merge pull request #215 from manalilatkar/story_2979

removing the integer validation of flavor due to the changes in flavor field by BRM
Merge pull request #214 from ramielrowe/reconciled_status_report

Adding reconciled send_status to usage report
the audit period ending should also take into account the value at exact midnight.
This makes the script account for periodic exists events that are stored exactly at midnight.
Merge pull request #218 from souvikbasu/master

Make public outbound bandwidth field have a default value of 0 instead of null
Merge pull request #219 from souvikbasu/master

Modify audit period ending to consider exact midnight
Config option for verifier event_types
Merge pull request #223 from ramielrowe/config_verifier_event_type

Config option for verifier event_types
Minor changes to readme.md to make instructions clearer. Also fixed sample_worker_config.
Modified glance worker to process the new exists notification
removed created_at from list of fields that are verified in image.delete verification
Added warning when invalid payload is encountered while saving exists notification
Ensured that image verified event is sent only once per owner for all his images
- Made changes so that we verify each group of exists messages with
  the same owner and raw_id separately. This ensures that if there are
  multiple exists notifications for each owner pending verification,
  we send an individual verified notification for each of them.

- Fixed race condition which was causing multiple verified messages to be
  sent by starting the async verify process per owner instead of per image.
Merge pull request #224 from anujm/readme_and_config_changes

Minor changes to readme.md to make instructions clearer. Also fixed sample_worker_config.
Merge pull request #225 from anujm/glance_exist

Glance exist
glance_usage_audit.py gives the summary of all exists within audit period along with details of failed exists. Some refactoring in nova_usage_audit is also included.
incorporated the review changes and optimized the old_images_query