Revert "Revert "Follow-up from admin UI authentication buttons PR""

This reverts commit 9b14e1d3bde13e2e1ef24e9f9cc77152afd2686d.
Etherpad toolbar + mq

Use new toolbar formatting + add mq configuration
etherpad settings json
Bump production to 8.0.0
Bump etherpad in QA environment, put QA1 back on master
Install OpenSans fonts
Bump production and QA1 to 8.0.2
Add the editBarButton etherpad step
Etherpad 66 in local env, restart etherpad on vagrant up, clean up etherpad settings
Bump activity TTL to 6 months

Synced up the JSDocs and order of the configuration with the one from
Hilary as well as this makes diffing easier.
Ensuring the /opt/etherpad/var directory exists when starting Etherpad
Ensuring the var directory is present in /opt/etherpad with puppet
Bump etherpad in the staging environment
Merged up master