update dev commands with just storagebin tests
record binary last_access
first pass at 90 day pruner
unit test had value set, but was always being overriden. accuracy of https://developers.google.com/appengine/docs/python/datastore/typesandpropertyclasses#DateTimeProperty debatable or environment issue?
missing pattern match end
ensure prune run-time is off-peak
Merge pull request #2 from jzerbe/auto-prune

add 90 day auto-prune