Offer delete option for own rooms in room list

Closes #308

See merge request arsnova/frag.jetzt!276

Set permissions when joining a room via click in list

Closes #293

See merge request arsnova/frag.jetzt!275

Add bonus token and bonus timestamp to export

Closes #303

See merge request arsnova/frag.jetzt!272

Add new comment list filter 'My questions'

Closes #302

See merge request arsnova/frag.jetzt!273

Cleanup room list

Closes #293

See merge request arsnova/frag.jetzt!274

Add comment answer page to moderators routing

Closes #304

See merge request arsnova/frag.jetzt!271

Merge branch '300-requesting-fullscreen-on-comment-board-leads-to-heavy-bugs-on-mobile-devices' into 'master'

Only request fullscreen for comment board on desktop device

Closes #300

See merge request arsnova/frag.jetzt!270

Add icon button to token dialog which navigates to corresponding comment

Closes #301

See merge request arsnova/frag.jetzt!269

Resolve "Format the token list as shown in the screenshot"

Closes #272 and #297

See merge request arsnova/frag.jetzt!268

Merge branch '298-make-lecturer-comments-editable-max-characters-2000-markdown-with-preview-as-for-session-description' into 'master'

Show answers on a comment in seperated view with markdown editing

Closes #298

See merge request arsnova/frag.jetzt!267

Logout user if backend resonses with null when refreshing login

Closes #296

See merge request arsnova/frag.jetzt!266

Resolve "Display token in alphnumeric order"

Closes #295

See merge request arsnova/frag.jetzt!265

Check if another browser is used on mac device

Closes #126

See merge request arsnova/frag.jetzt!264

Resolve "Add Space between session creation and roomlist"

Closes #289

See merge request arsnova/frag.jetzt!263

Add a 'delete from room history' button for users

Closes #286

See merge request arsnova/frag.jetzt!261