Add support for returner configuration in salt minion

Conflicts:
	salt/formulas.jinja

Add clean_file to wipe saltstack.list contents

Make Debian use pkgrepo.managed

fixed ext_pillar and master_tops to get more options

Replace deprecated iteritems() with items()

Never fall back to `cfg_salt['master']` in minion config

- When it's iterable, the minion could be running on the master
- When it's a string, there's no advantage over just specifying
  `salt:minion:master`

use salt_settings.syndic_service so state works on FreeBSD, too

Manage show_jid option in master configuration

Remove trailing whitespace from master config

This makes it easier for users to check the status of jobs that ran into
a timeout.

Add master_type option

Filter all calls to formulas_git_opt through load_yaml

Jinja macros are not actually functions.  The only thing they can return
is a string.  In order to return structured data, the callee must
serialize it, and the caller must deserialize it.  This state formula
uses YAML as the intermediary, hence the occurrence of both the
`|yaml` (callee) and `|load_yaml` (caller) filters in its code.

The post-render "mapping values are not allowed here" error in
*salt/formulas.sls* or the broken rendering of
*salt/files/master.d/f_defaults.conf* happens because invocations of the
`formulas_git_opt` macro in several Jinja `set` statements do not get
deserialized, resulting in the trailing newline followed by three dot
characters (`...`), which YAML uses to signal the end of a document.
Correcting these rendering errors requires adding the necessary
deserialization code at those locations (i.e., filtering the macro call
through `|load_yaml`).

Fixed conflict with git-formula

Remove mapping test

This test isn't available in certain popular versions of Jinja (namely the one
installed by default in CentOS 6).

Improve flexibility/quality of pygit2 state

Configure the salt-api service to start at boot time

Only watch salt-api package if install_packages=true

Also watch salt-api pkg instead of salt-master one.

Fixed pillar_roots generation for salt-master.

With a simple pillar like this::

    $ sudo salt-call --config-dir /srv/etc/bootstrap --pillar-root /srv/pillar pillar.get salt:pillar_roots
    local:
        ----------
        base:
            - /srv/pillar

This was generated in /etc/salt/master.d/f_defaults.conf::

    # highstate format, and is generally just key/value pairs.
    pillar_roots:base:- /srv/pillar
    #

Resulting in parse errors by salt::

    $ sudo salt '*' state.highstate
    [ERROR   ] Error parsing configuration file: /etc/salt/master.d/f_defaults.conf - while scanning a simple key
      in "<string>", line 531, column 1:
        pillar_roots:base:- /srv/pillar
        ^
    could not found expected ':'
      in "<string>", line 532, column 1:
        #
        ^
    [ERROR   ] Error parsing configuration file: /etc/salt/master.d/f_defaults.conf - while scanning a simple key
      in "<string>", line 531, column 1:
        pillar_roots:base:- /srv/pillar
        ^
    could not found expected ':'
      in "<string>", line 532, column 1:
        #
        ^

This patch will fix it as such::

          ID: salt-master
    Function: file.recurse
        Name: /etc/salt/master.d
      Result: True
     Comment: Recursively updated /etc/salt/master.d
     Started: 11:37:12.946823
    Duration: 6255.296 ms
     Changes:
              ----------
              /etc/salt/master.d/f_defaults.conf:
                  ----------
                  diff:
                      ---
                      +++
                      @@ -528,7 +528,9 @@
                       # Pillar is laid out in the same fashion as the file server, with environments,
                       # a top file and sls files. However, pillar data does not need to be in the
                       # highstate format, and is generally just key/value pairs.
                      -pillar_roots:base:- /srv/pillar
                      +pillar_roots:
                      +  base:
                      +    - /srv/pillar
                       #

Resulting in::

    # highstate format, and is generally just key/value pairs.
    pillar_roots:
      base:
        - /srv/pillar
    #

Add options for mult-master setup

Use the py27-pygit2 package when installing pygit2 on FreeBSD

Use the py27-GitPython package when installing GitPython on FreeBSD

Use the py27-salt package when installing salt-ssh on FreeBSD

This key defaults to a value of `python-git`.

On FreeBSD salt-ssh gets bundled into a single package with the other
SaltStack components (minion, master, etc.).

Revert bad

This reverts commit 7bb82b0178.