Version collector previously returned errors and logged them in the
calling code. It is cleaner to log inside version collector.
Change-Id: I52cb49a1ef53f3f1f51692ddb26ec095cfd0f100
This is part of change to split metainfo endpoint into smaller
files. It will be grouped by bucket/object/segment/other requests.
Tests will be split as a separate set of changes.
Updates https://github.com/storj/team-metainfo/issues/12
Change-Id: I6c691e4d0e192fe3ad7974d2d0ab5ced0d272f3c