GitLab

* Add texlive-latexdiff for producing LaTeX documents as a diff of
LaTeX-documents (a bit like trackchanges
* Add a4wide
* Add systemdocu LaTeX dependencies
* Arial probably not working (no testcase)
* Fix issue #16 and #17
* Make rule idempotent

* Add las122

* Add a role for EPICS base on Fedora
* Add basic support for talking to KARA's PVs
* Neither support for all further packages used at KARA nor any used for
the Jena-project

* Update elegant to 34
* Update pre-commit-hook file
* Add Python packages:
  - i18n (language support)
  - yapf (Python formatter)
  - Cython (Performant superset of cPython)
  - mypy_extensions (further mypy stubs)
  and some Python 2 deps for the beamline notebook

* Update elegant
* Fix issue #14

* create profile.d file if it isn't there already

* PyCharm version in extra variable
* new software:
  * neovim
  * ptpython3
  * python3-mypy

* installed is no longer supported
* some fixes in handlers

Patch CMakeLists.txt

build directory is no longer part of the git repo

* postmaster is no user account therefore it is not ment to be in the
revaliases. Hence it is logged in the journal

* enable smartd
* scan discs every night
* mail if discs get corrupt