Fix registering sw

See merge request !270

Reenable aot

Closes #181

See merge request !266

Room page comment counter

Closes #289

See merge request !268

Fix alot of stuff

Closes #311, #306, and #300

See merge request !267

Disable stomp debug output in production

See merge request !269

This is because of a bug in the angular-cli.
May hopefully be resolved so this commit can be reverted.

Based on arsnova-comment-service commit
  b88aa32c54ba773373b817d36313787ae895e809

Refactor participant room page to use base class

Also check for when the user presses esc on fullscreen initiated by the app

Resolve "Ready for EDULEARN"

Closes #308, #304, and #303

See merge request !265

Update de.json

See merge request !264

Update en.json

See merge request !263

Update room-list.component.html

See merge request !262

Update manifest.webmanifest

See merge request !261

Show the tool bar from the 3rd comment on

See merge request !260

Improve comment-list view + 2 bug fixes

Closes #288

See merge request !257

Merge branch '301-show-session-description-in-the-view-of-a-lecturer-without-menu-and-title' into 'master'

Resolve "Show session description in the view of a lecturer without menu and title"

Closes #301

See merge request arsnova/arsnova-lite!259