Test if thesis is vetted/deleted and mail is sent in
the accepted/refused case.

Merge branch 'fix-thesis-vetting' of https://bitbucket.org/scipostdev/scipost_v1 into fix-thesis-vetting

Altered the message alert class and positioned it absolute to
 the body to have floating messages.

Theses that are accepted are vetted by the correct contributor.
Mails are not yet sent. Thesis is not yet deleted when refused.

Work in progress. All unvetted theses are now listed at
theses/unvetted_thesislinks. Vetting editors click on
a thesis link to vet, and are redirected to
theses/vet_thesislink/<id>, where they can change fields of a thesis
link.

theses/vet_thesislink/<id> is now a regular update view. It does not have
mail capacity, or refusal reasons, etc. I will work on that next.

Commentaries/tests

I keep get weird bugs. Maybe merging in development will help.

Merge Commentaries/wip-jorran

Merge conflict fixed in `theses_detail`,
 due to a hotfix in commit `4d42a5d8`.

To avoid merging problems with useless files,
 merge the .gitignore file first.

The dependencies list `package.json` was not included in
 repository, due to a mistake in the gitignore.

I made a mistake by starting `go_responsive` from
 the `master` branch. However, I still want to first
 push it to `development`.

 Conflicts:
	.gitignore
	commentaries/views.py
	submissions/models.py
	theses/views.py

Alter the screen width values to get closer to
 the original SciPost design.

Login page is now responsive with the
 use of a template filter, such that all
 forms from now on may easily be printed
 using the same html frame. See `bootstrap`
 templatetag.

The styling of the homepage is back to the styling of the `master`
 branch, but responsive. Needs detailed styling edits for i.e.
 the mobile menu.

Last commit was incomplete as the
 gitignore was not suffiently working on
 all static files.
It now includes the renewed template files
 to make the homepage reponsive. Also, it
 completes the configuration for Bootstrap
 Webpack loader.

Update and configure to Webpack@2.x
 and install Bootstrap@4.0.0@beta-6
 loader. Configured to start using
 .scss files.

The `static` folder will be ignored in the future commits. All
 existing files in this folder in the repository are now removed.

The README.md file is updated to include a correct workflow
 on how to deal with static files.

Added a NPM packages.json list which manages
 JavaScript packages. Most important packages added
 is the Webpack package which acts as an assets
 bundler.
It is added in its most basic working form. This
 includes additional settings in `settings.py`
 and the template tags in `base.html`.
Please read the updated Readme.md to easily get
 started using Webpack for your new assets.

Markup logic should be in templates, not in model layer.

Partial template is named _header_as_table to signal
that it is ment to be included into other templates
(analogous to the private method naming convention.)
The full text of several of the thesis link's fields
(domain, subject_area, etc.) are fetched from constant dicts
in custom filters defined in theses.templatetags.theses_extras.