Update to typesafe-config 1.2.1 from 1.0.1 so a "d" is a day and other goodness.

The driver for this is the old version interpreting "7d" as "7 milliseconds as a double" or some
such silliness, but it brings other side benfits along as well.
Merge pull request #3 from socrata/marcs/update-typesafeconfig

Sounds good, merging.
Setting version to 0.1.1
Setting version to 0.1.2-SNAPSHOT
Update dependency

Reviewed-by: robert.macomber@socrata.com
Setting version to 0.1.2
Add rollup (metadata) support.
Fix “it” tests.

We were setting the last modified both in the object at creation and in the database resulting in mismatches.
Delete rollup_map entries when we drop dataset.
Rename rollup lookup method and add one to lookup all rollups.