Merge pull request #14777 from hulu/pulp-fiction

copyedit doc/topics/releases/2014.7.0.rst
Dont set upstream if ref is HEAD

If the ref is HEAD, the we should be in a detached HEAD, and thus don't
have a remote, so there is no point in setting this.
i can't computer
catch exceptions and fix some vars
Deploy /var/cache/salt with common RPM

Also changed the deprecated $RPM_BUILD_ROOT to %{buildroot}.
Disable service.py for entire SUSE family >= 12

Checking os_family allows us to pick up openSUSE and SUSE Linux Enterprise, rather than just checking for os == openSUSE.
Added versionadded directives to shadow module
Merge pull request #14786 from pabluk/fix-versions-shadow-module

Added versionadded directives to shadow module
Removed 0.17 requirement note from formula docs

0.17 is no longer a supported release.
Moved the Formula Conventions CHANGELOG section down next to Versioning

This section is less important for new users than the mapfile and sls
recommendation sections.
Improve and shorten the Formula lookup table recommendation
Updated the Formula README recommendation
Added link targets to a few requisite types
Improved the simple Formula usage example at the top
Improved the Formula installation docs with examples
Improve and clarify the Formula docs on using formulas from non-formulas
Moved the Formula repository structure docs to the bottom

We should describe best practices for writing formulas first.
Fleshed out the recommendations for writing reusable formulas
Removed the redundant platform agnostic Formula section
Fleshed out Formula Parameterization section