fixed a few pipelines where awk could do the job of several tools
Merge pull request #99 from gcw/develop

Fixed a few pipelines where `awk` could do the job of several tools.
Extend/fix parsing `/etc/os-release`.
We don't support installing on ALL Debian versions.

Let's explicitly say we can install on Debian versions we're actually able to install salt.
We currently only support Debian 7 git installations.

* Until we have the Saltstack repository running, there are no packages available.
Add return codes to all install functions.
Only run the final step debugging information if debug output is enabled.
Fix `config_salt()` `||` chaining on the wrong place.
Use native upstart commands and not `initclt` on Ubuntu when restarting daemons.
Install salt 0.14 instead of 0.13.1
Only try to stop running services.
Fix typo
Let's try sleeping between commands.
Longer sleeps!?
Salt packages are on `epel` now. Fixes #103.
Only add SuSE/OpenSUSE `devel_languages_python` if repository is not known.
Pip based installations need to install config files "by hand".
Salt configuration file needs to be triggered on the deps function.
Don't let Ubuntu 13.X installs to go through. Software properties package us broken.
Bump version and update change log.