Default options were never returned if omit_pillar flag was set to false
Simplistic tests (still better than none)
fix pkg.latest bugs
Basic apt-repo management functionality

Added in the core functionality needed to manage apt-based repos.
The only downside is that due to the way apt works, most of the
interfacing requires utilizing the formatted repo_str.  This is
because the formats can vary some depending on specifics.

Support for the format "ppa:<project>/repo" has also been added
provided that the python libraries are installed.

This is all done via the python-bindings for apt, rather than calling
out to the "aptitude" or "apt-get" binaries (since the bindings have
some validation in them).

Minor modification of pkrepo state to detect when repos are already
configured (instead of configuring them every time).  Also improved
"changes" output for modified repos
Merge pull request #3347 from morganfainberg/apt-repo-management

Basic apt-repo management functionality
Adding initial nfs execution module
Merge pull request #3348 from techhat/nfs

Adding initial nfs execution module
Merge pull request #3329 from mjarco/fix-config-options-defaults

Default options were never returned if omit_pillar flag was set to false (or unset)
Fix #3340
The module state should only return changes if the function call

returns positive data
use special compare method for package versions
Merge pull request #3345 from giantlock/develop

fix pkg.latest bugs
Add python-apt deps for Travis builds