Fiduswriter

**Fixes:**
* Allow creation of new template
* Allow creation of doc from empty template

**Fixes:**
* Reset password
* oauth login urls
* this.config.user not defined

**Main new features:**

* A menu for text selections to comment, place anchor or accept/reject all tracked changes within selection
* Document invites to assign access rights to users who are not yet on Fidus Writer
* Turn remaining pages into Single Page App (SPA)
* Turn Fidus Writer into a Progressive Web App (PWA)
* JATS export
* Epub 3.0 compliance
* Stylesheets included in HTML and Epub exports
* Document template editor to frontend
* Mathlive.js for formula editing
* Give access to all 2000+ CSL citation styles
* Dynamic imports
* Packing using webpack rather than browserify
* Major design overhaul
* Spanish translation update
* Packaging for Pypi

**Fixes:**
* make bulk check all work more intuitively
* fix citationstyles list in template editor
* add styling to editors in template editor

**Fixes:**
* Admin console translation loading

**Fixes:**
* Maintenance: update all first time
* Do not show worker update dialog as it was not shown in the right place
* Bulk selector: show checkmark if activated