Allow old migrations to run even on new data.
Fix duplicate API query.

The DataTables ajax integration performs the real API request that gets
used.
Fix mis-labeled header.
Remove unused serialized data in the DataTables ajax response.
Add an authentication token for admin accounts.

This will be used as a simplistic first approach to grant admins access
to the various admin management APIs (creating/managing keys, managing
api configuration, etc).
Begin to move around the admin APIs so we can expose these externally.

This will allow our admin partners to programmatically control the admin
via the API. As part of this, the admin user section is also being
API-ified with an Ember front-end.
Use datatables for the api list so it's consistent with the other lists.
Allow the API backend configuration items to be reordered.

This ordering can affect the URL matching order of different APIs. This
fixes https://github.com/NREL/api-umbrella/issues/21

This also improves the progress indicator on all DataTables so the
loading progress is more obvious on longer tables.
Increase the number of rows displayed by default in some of the tables.

This affects the admin list, api user list, and apis list.
Fix loader icon so that it shows up on first load.
Upgrade to Ember 1.4.0. Also update other library dependencies.

This upgrades quite a few of the libraries, but it also moves them to
using the rails-assets.org bower packages (instead of git submodules).
This will hopefully make it easier to keep everything properly versioned
and up to date.
Upgrade gem dependencies while we're in an upgrading mood.
Make rubocop pass again.
Cleanup the new API output a bit.

- Hide the fact that mongo uses '_id' internally, and use 'id' publicly
(the fact that we're using mongo doesn't seem like it should be relevant
 to the public api).

- Standardize that the users API calls things just 'user' and not
'api_user'.
Remove blockui as a submodule since we're trying to get away from that.
Fix reordering logic for the api list.
Fix rubocop deprecation warning.
Merge pull request #1 from NREL/admin-apis

Admin APIs, library upgrades, and misc cleanup