3349: Consolidate comments in application.default.yml
3349: Update to ruby 2.1.2
3349: Merge branch 'master' into 3349-install-docs
3349: Remove duplicate keys in default yml.
3349: Add default blob_signing_key for test environment.
3349: Do not override working "test" defaults in example config.
3349: Merge branch 'master' into 3349-install-docs
3349: More example/default config cleanup.
Merge branch '3349-install-docs' closes #3349