Double to single quotes.
Make `salt.payload.SREQ` IPv6 aware.

Since `salt.payload.SREQ` also checks for the `IPV4ONLY` attribute, which was added because of the IPv6 support, and that has proven problematic in some networks, we only set `IPV4ONLY` if IPv6 support is enabled.
rm some unused vars reports by pylint
Fix for issue #3718 memcache returner
depency python-memcached
(tested with archlinux python2-memcached)
https://bugs.launchpad.net/python-memcached
simplify dict loops

use .values() instead of .items() when not using the keys
use .keys() directly instead of rebuilding lists from it
Update memcache_return.py

removed logging, this didn't work on daemonized salt
only on salt-call --local
Merge pull request #4757 from aboe76/return_memcache

Fix for issue #3718 memcache returner
Merge pull request #4756 from hulu/rm-some-unused-vars

rm some unused vars reported by pylint
Merge pull request #4758 from hulu/simplify-dict-loops

simplify dict loops
Start work on the 0.15.0 release notes
Removed duplicated instructions for clarity
Deleted outdated build instructions

I think something similar to these should be available, but
anyone following these and also trying to use the backported packages
is likely to make a mess at the moment.
Merge pull request #4764 from joehealy/further_debian_doc_changes

Further debian doc changes
Refine the top paragraph a bit
actually use the 'runas' arguments in rabbitmq module
fix 'user' arg to modules.rabbitmq.list_user_permissions
add require for service state in examples
actually use pool name argument in zpool_status()
rm unused `refresh` arg from modules.apt.mod_repo

the argument is currently ignored
code seems to always do a refresh anyway
Merge branch 'hotfix/sreq-ipv6-support' of git://github.com/s0undt3ch/salt into s0undt3ch-hotfix/sreq-ipv6-support

Conflicts:
	salt/utils/__init__.py