This is one step for implementing the free tier:
* Change the default project limit from 10 to 3
* Move storage and bandwidth project usage limits from the metainfo
package to the console package (otherwise there is a cyclical
dependency, and metainfo doesn't use these values anyway)
* Change the default storage usage limit per project from 500gb to 50gb
* Change the default bandwidth usage limit per project from 500gb to 50gb
* Migrate the database so that old users and projects continue to have
the old defaults (10 projects/500gb usage)
Change-Id: Ice9ee6a738bc6410da18c336c672d3fcd0cab1b9
