Make pkgrepo work for Debian derivatives without their own repos

e.g. TurnKey Linux amongst others

Fix `repo.saltstack.com` URLs for Python 3 packages (#364)

Fix `salt:lookup` regression

Simplify map.jinja revert deep_merge solution from #193

Fix `repo.saltstack.com` URLs for pinned minor release (#364)

* All minor releases appear in an `archive` sub-directory.
* Resolves main bug in GitHub issue #364.
* Simplification of original GitHub PR #365 by @ralucasg.

Add missing GitPython-package for Arch

add initial travis integration

add travis button to README

shutoff debug output from unless

Add support for file external_auth special directives

Fix support for extra config values as mappings

Move some defaults from pillar.example to defaults

Support fileserver_list_cache_time in master configuration

Stop noise from 'test -e' check'

Signed-off-by: Johannes Löthberg <johannes@kyriasis.com>

Support publisher_acl minion-level commands

Handle other non-iterable values like int/float.

Handle extra config where value is a list (minion)

* Also minor unrelated updates/fixes

Remove commented version and associated comment, as we still have the same
option earlier in config with an other valid comment.

* Ensure options for formulas `git.latest` are also based on defaults

* Prevent erroneous remote tracking branch modification by `salt.formulas` #238

* Allow multiple envs to use the same gitdir for `salt.formulas`

* Ensure `gitdir` original branch is checked out after formulas `git.latest`

* Fix erroneous comment re: merging in `salt` pillar

closes #367

* Minion/returner/elasticsearch yaml read fix.

* Improved the documentation for the elasticsearch returner

* Add MacOS support; fix Issue #352

* On MacOS, only attempt download if condition

Add if salt_settings.install_packages to requisites for an attempt to download the minion package on MacOS

* Update example pillar for MacOS support

Describe how to use MacOS specific options

* Add MacOS notes

* Update README.rst

* Update README.rst

* Added quotration around globing rules

Issue 361

salt.gitfs.gitpython.install_from_source == False on RedHat
Not sure about other O/S'es as to what default value should be

Add quick sanity check at start of state, do not attempt to do anything unless salt.gitfs.gitpython exists to check for install_from_source within

fix iteritems python3