`gmg wipealldata` deletes the default mediagoblin database

[joar]

If you have a non-default database configured for MediaGoblin, running gmg wipealldata will delete the default database.

This is inconvenient if you have multiple instances running on the same machine.

[Will Kahn-Greene]

This seems like a big deal. I'm going to stick it in 0.2.2.

[Jakob Kramer]

Fixed on my ​wipealldata-from-db_name branch. ;-)

[Christopher Allan Webber]

Merged, though it might be a bit silly of timing since we're about to throw the SQL switch in a week :)