* Allow orders to be archived after being settled successfully with the
satellite.
* Allow for cleanup of orders that were archived before a certain time.
* Rewrite other parts of the orders file store to work better with new
design.
Change-Id: I39bea96d80e66a324ec522745169bd6d8b351751
* Will replace order limits database.
* This change adds functionality for storing and listing unsent orders.
* The next change will add functionality for order archival after
submission.
Change-Id: Ic5e2abc63991513245b6851a968ff2f2e18ce48d