Merge branch 'release/0.28.2' into develop
Add a dedicated target to update sparks requirements, I use this 50 times a day…
Fix the installation link in the readme.
Merge branch 'hotfix/0.28.2.1' into develop
add GIT ignore entry for external fabfiles.
switch to original writingfield, it has evolved a lot since the time.
version bump
Merge branch 'release/0.28.2.2'