OpenStack usage plugin
Tests for OpenStack plugin
remove Hello World
Merge branch 'master' of github.com:allegro/ralph_pricing
Add missing migrations
Merge pull request #17 from quamilek/master

Add missing migrations
Merge branch 'master' of github.com:allegro/ralph_pricing
if ralph_id is None
Add virtual servers usage plugin
Add a disk shares usage plugin
Merge pull request #19 from wmatyskiewicz/api

if ralph_id is None
Handle failed reports.
typo
Separate get_ventures functions
Merge branch 'master' of https://github.com/allegro/ralph_pricing into OpenStack
Fix tests
Modify DailyUsage data
api
api
api