Development

Approved-by: Jean-Sébastien Caux

Also fix missing template error for modified thesis links.

Edit styles to make old comment form better readable.
 This commit includes a new template which should eventualy act
 as a replacement for crispyforms which do not allow for
 easy bootstrap implementation.

The Comment model now has a option to
 append a file (pdf, png, jpg) to itself.

CAUTION! READ ME!
This migration will setup a proper attachment environment.
This means, that for existing files (journal publication!),
 these folders/files should be completely moved to the MEDIA_ROOT
 folder, else this will return a 404 NotFound for the related
 files.

Improve comments app to follow PEP rules
 and remove all wildcard imports!!

Improve HTML structure for journals
 such that all elements are aligned with
 eachother and most content is repsonsive.
 Biggest thing to do still is the journal-menu
 which is not reposnive yet.

In the journals app, the Issue model is extended
 with a status field. This is published by default,
 but has a draft options such that a journal can be
 created without being shown. Incomplete issues
 can cause errors for visitors, so use the draft status
 if an issue is not "visitor-ready" yet.