Clean up some PEP8 stuff
Modified nginx module

Append nginx.configtest to check configuration, modified signal to support
nginx start
Merge pull request #4584 from pengyao/develop

Modified nginx module
Add libzmq version to --versions-report output.
implement postgres.owner_to th change ownership of all relartion, functions, ... in the database
fix string formatting
Clean up 'salt --versions-report' after patch from s0undt3ch (thanks!).
Merge pull request #4585 from kinware/develop

Add libzmq version to --versions-report output.
Add support in test module for getting versions report from minions.
Fix doc string in test.versions_report(). Cosmetic fix.
Merge pull request #4587 from kinware/minion-versions-report

Add support in test module for getting versions report from minions.
Provide the necessary code changes to support #4587. Again, sorry @kinware for my rudeness.
Merge pull request #4590 from s0undt3ch/develop

Provide the necessary code changes to support #4587. Again, sorry @kinware for my rudeness.
Clean up very old string concatination
Don't use os.sep here. Always / on master
Another spot where we don't need os.sep
Merge pull request #4591 from UtahDave/fix_init.sls

Fix init.sls paths on Windows.
Catch returns that do not have hosts
Make sure proper number of parameters
Merge pull request #4592 from UtahDave/fix_win_user_delete

Make sure proper number of parameters are correct on windows