fix docs for mod_aggregate per #16575
Clarify a couple links in the docs
Add notice of new packages for Helium release
Improve wording of RPM changes in helium release notes
Merge pull request #16846 from terminalmage/clarify-docs

Clarify a couple links in the docs
Add missing import
Merge pull request #16852 from s0undt3ch/2014.7

Add missing import
Merge pull request #16848 from terminalmage/helium-rpm-notice

Add notice of new packages for Helium release
Merge pull request #16805 from thatch45/agg_doc

fix docs for mod_aggregate per #16575
Merge pull request #16836 from opdude/2014.7

Return empty dict for list_pkgs(purge_desired=True) with macports
Fix MySQL master job cache

Conflicts:
	salt/returners/mysql.py
Merge pull request #16859 from cachedout/issue_15719

Fix MySQL master job cache
update raet intro
Redirect tot he correct page
Merge pull request #16862 from thatch45/raet_intro

Raet intro
Added updates to 2014.7.0 release notes
Merge pull request #16875 from rallytime/release_notes

Added updates to 2014.7.0 release notes
Fix event forwarding, someone (during refactoring?) had removed registering the event socket to the poller, which meant that the syndic would never forward events
Fix for #16825

In the case that you are a lower level master (under a syndic) we weren't calling prep_jid, which meant that the job wasn't initialized in the cache. Now we call prep_jid all the time, optionally with a jid passed in. This way the master can ensure that it is ready to store information about this jid when it goes further down the track (ret, save_load, etc.)
Install repoquery if not present on yum-based distro

Resolves #16874.