Freshen up with latest from RackerLabs (and include tox.ini)

Added instance hours report

Initial version of report to calculate unit hours used
for nova instances

Breakdown by flavor, flavor class, account/billing types and by tenant.

Moved license so script has shebang as the first line
Add tenant info cache.
Refactor Instance hr report.
Added cache table for basic tenant info for reports.
Refactor instance_hours report to use table.
Improve performance of tenant info update.

use bulk sql operations to speed up the tenant info update,
as it's taking ~40s/1000 tenants to update on a decent machine.

Fix some tests broken by rebase. Fix unittests broken by
rebase. Also, renumber migration due to collision.

Add Apache license header to new files.

Fixed bug with fetching deployment information in
reconciler. Reverted old method for fetching
current usage's deployment and added new method to
fetch latest deployment information for
a request_id.

Made the field mismatch error message more readable
Refactored nova and glance verifier tests

the exists are updated with 201 send_status as part of stacktach down repair mechanism

Revert "Fixed bug with fetching deployment information in"

Revert "Adding host and deployment info to missing exists entries in the nova usage audit"

Revert "Added column headers for host and deployment in json reports"

Only log ERROR on last retry

fixed the wrong status name for sent_failed variable in audit report

fixing documentation for urls that are not available for glance

deprecating stacky urls (usage, deletes, exists) that are not
used anymore

Revert "Revert "Added column headers for host and deployment in json reports""

Revert "Revert "Adding host and deployment info to missing exists entries in the nova usage audit""

Revert "Revert "Fixed bug with fetching deployment information in""

Cell and compute info added for verification failures as well.
If that is not present(request_id is not populated for an
InstanceUsage entry), the cells display '-'

Add tox support for move to stackforge

Add tox support for move to stackforge

Change-Id: Id94c2a7f1f9061e972e90c3f54e39c9dec11943b