Properly detect Linaro (Ubuntu derivative)

This commit sets the os_family grain to 'Debian', thus enabling apt to
be detected as the pkg provider. In addition, it properly sets the
service provider to upstart.
Merge pull request #6501 from terminalmage/docs

Add note about new mount.unmounted state
Merge pull request #6500 from terminalmage/issue6496

Properly detect Linaro (Ubuntu derivative)
pkg_resource mod: rm unused import

************* Module salt.modules.pkg_resource
W0611:  6,0: Unused import collections
Merge pull request #6504 from cvrebert/patch-1

pkg_resource mod: rm unused import
ddns: fix bugs in add_host and delete_host
Merge branch 'develop' into ddns
Fix traceback in salt-call --local

This fixes #6502 by reverting 83c2e61 and removing the lines in
salt.minion.get_proc_dir that clear out the proc dir, since this is not
the desired behavior.
ddns: don't clobber PTR records with a different hostname
Merge pull request #6506 from terminalmage/issue6502

Fix traceback in salt-call --local
Merge pull request #6505 from mgwilliams/ddns

Ddns
Adding function to split low tags

Sometimes you want to access the innards of the state system. If you do that the tags are a bit hard to use. Since we can't use tuples as keys (due to msgpack, etc.) we should have some function to reverse what we did to the low object.
Added detail to docstring for get_proc_dir()
Merge pull request #6509 from intchanter/develop

Added detail to docstring for get_proc_dir()
Merge pull request #6507 from jacksontj/develop

Adding function to split low tags
Grammar cleanup
Formatting corrections
Formatting fixes + added File Directory Settings

Added the configuration parameters made available with a local
fileclient.
Added links, formatting fix for standalone minion docs