Update 'doc/.tx/config' - Build #69

  http://cookingwithsalt.org/job/salt/job/transifex/69/

Signed-off-by: Pedro Algarvio <pedro@algarvio.me>
introducing the foreman ext_pillar module
Fix merge_if_exists in states.file.serialize

This feature was recently added, but about two weeks before it was
added, this state started importing salt.utils.{yaml,json} as yaml/json.
This makes the yaml.load (or json.load) fail since these functions are
not in the serializer modules.

This fixes merge_if_exists by importing the serializer modules for yaml
and json under a different namespace, allowing the yaml and json modules
to also be loaded.

It also makes the change to using yaml.safe_load, and also adds a
versionadded directive for merge_if_exists.
Ensure correct syspath
Skip test if unable to import the git python package
Merge pull request #13153 from s0undt3ch/hotfix/transifex-updates

Update 'doc/.tx/config' - Build #69
Merge pull request #13159 from s0undt3ch/develop

Ensure correct syspath
Cleanup for #13160

This commit makes the changes from #13160 conform to the Salt way by
kreturning booleans for enable/disable. In addition, it makes the
following changes:

1. Adds versionadded directives

2. Fixes leaked file handles by using with statements (and
   salt.utils.fopen).

3. Raises a CommandExecutionError in ares where the failure of a
   function reaches an error case.
Implement puppet agent enable/disable'ing
Add puppet.status, returning agents state
Add puppet.summary, extracts various infos out of latest run report
Fix mistakes pointed out by pylint in 3 previous commits
Merge pull request #13158 from terminalmage/issue13137

Fix merge_if_exists in states.file.serialize
Json is not going through serializers anymore. Refs #13158
Merge pull request #13160 from mfournier/puppet-modules-improvements-cleanedup

Puppet module: 4 new methods
correct erroneous os.kill() statement
add missing reference to error message
Added an execution module for varnish (https://www.varnish-software.com/)
fixed trailing whitespaces and stuff pylint complained about.
Allow arbitrary absolute path. Error on relative path without user argument.