rails 4.0.10

Some of these tweaks to bin and config were made just to match what a
newly-generated rails4 project looks like.

Change-Id: I57a7c71e2ddd7f3295ffadf30cb0976c4d15db6a
Reviewed-on: https://gerrit.instructure.com/41186
Reviewed-by: Cody Cutrer <cody@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>
Product-Review: Brian Palmer <brianp@instructure.com>
QA-Review: Brian Palmer <brianp@instructure.com>