Dashboard is broken after installation Separate Keystone plugins without installed Separate Database plugin

[Alexander Gromov]

I have tried to install Separate keystone plugin and have forgotten to install Separate Database plugin before that.
Then I have gone to dashboard and have noticed that I can't go to any other tabs there.

Steps to reproduce:
1. Prepare nodes (I have used fuel-qa to prepare 12 nodes)

2. put to plugins directory detach-keystone plugin:
    $ ls -l plugins
    -rw-r--r-- 1 agromov mirantis 14882 Jan 25 22:01 detach-keystone-1.0-1.0.2-1.noarch.rpm

3. Upload plugins to the master node
    $ scp plugins/detach-keystone-1.0-1.0.2-1.noarch.rpm root@10.109.7.2:/var

4. Go to master node and install plugin
    $ ssh root@10.109.7.2
    # fuel plugins --install /var/detach-keystone-1.0-1.0.2-1.noarch.rpm

5. Go to dashboard and create new env with default settings.
6. Try to go to other tabs (it must be blocked on this step)

[Julia Aranovich (jkirnosova)]

The problem is that Separate Keystone plugin has a restriction related to Separate Database plugin without strict: false flag:
https://github.com/openstack/fuel-plugin-detach-keystone/blob/master/environment_config.yaml#L5-L7