* slurm: 17.11.5 -> 17.11.7, pyslurm: 20180427 -> 20180604
This commit also swaps to use the official repository's github release tags
instead of their download site, which only keeps the most recent version with no
historical archives.
* Document why we don't run tests
* Remove dead testing code
* pkgs: refactor needless quoting of homepage meta attribute
A lot of packages are needlessly quoting the homepage meta attribute
(about 1400, 22%), this commit refactors all of those instances.
* pkgs: Fixing some links that were wrongfully unquoted in the previous
commit
* Fixed some instances