Merge tag 'v1.6.1'

v1.6.1
Make sure the configured ACL submodel is used
Merge pull request #166 from strongloop/feature/acl-subclass

Make sure the configured ACL submodel is used
Fix incorrect usage of `app` in app.test.js

The `beforeEach` hook was using a local `var app`, the test was
accessing global `app` created by `test/support.js`.
Make app.models unique per app instance

Remove a source of confusion in unit-tests.
Merge pull request #168 from strongloop/feature/new-model-registry-per-app

Make app.models unique per app instance
Add app.isAuthEnabled.

The flag is set by `app.enableAuth` and can be used to detect
whether the access control is enabled.
Merge pull request #170 from strongloop/feature/add-app-isAuthEnabled

Add app.isAuthEnabled.
Use hex encoding for application ids/keys

base64 encoded ids/keys are not friendly for urls
Merge pull request #173 from strongloop/feature/fix-accesstoken-id

Use hex encoding for application ids/keys
Documentation (generated) fix
Merge pull request #176 from pandaiolo/master

Documentation (generated) fix

Thank you for the patch.
Bump version and update deps
Merge branch 'release/1.6.2' into production