updated PKGBUILDs to 0.13.3 release
Merge pull request #4172 from cedwards/PKGBUILD

updated PKGBUILDs to 0.13.3 release
Merge pull request #4177 from jacksontj/develop

Add a "cas" function to the data module
Better fix for 'pip' detection in setup.py
Merge pull request #4178 from zsimic/develop

Better fix for 'pip' detection in setup.py
Making tests runnable on OSX
Merge pull request #4182 from zsimic/develop

Making tests runnable on OSX
Fix issue in file.directory with file.stats return data
fix column alignment
Rename pkg.available_version to pkg.latest_version

See https://github.com/saltstack/salt/issues/4163#issuecomment-15211619

All refs have been updated, and each pkg provider now has
available_version as a function reference pointing to latest_version.

Sphinx docs also updated so that the available_version function
reference is hidden in the docs.
Update ubuntu documentation

add-apt-repository is not always present by default on Ubuntu systems. Updated the installation doc accordingly.
Fix file.diretory test=True #3858
Merge pull request #4183 from terminalmage/latest_version

Rename pkg.available_version to pkg.latest_version
Merge pull request #4184 from h3/patch-1

Update ubuntu documentation
Minor edits from #4184

@h3, thanks for the docs update, we greatly appreciate it! I just
changed the tense (we try to keep the docs third person - I know,
it still needs work). Keep it comming!
Add initial checks for wheel token auth per #4179
Fix #4179

Wheel can now acept tokens
Fix #4180
Avoid tracebacks in certain caching edge cases

This fixes #4174.

When salt tries to cache a file and its cache destination already exists
(and is a directory), recursively remove the directory before caching
the file.

Inversely, when salt tries to cache a file/directory and a directory in
the cachedir that salt is trying to create exists (and is a file),
remove the cached file first before attempting to create the directory.

Also, made PEP8 fixes to keep pylint happy.
Add missing docstring examples in pkg_resource