fixes #2652 - systemd service now working
(cherry picked from commit 9923a7d9a2c37120cbdd49f0201f2d76963dbd40)

Conflicts:
	foreman-proxy.spec
Fixes #2654 - Rewrite master as production when only one environment is found
(cherry picked from commit 1c60be634d26163cc7fe43f5adad1f9f75c3309d)
Fixes #2659 - Use gsub in a non-destructive manner
(cherry picked from commit 92a8bdeff4503f0160ec2580996415e749ca0c8f)
fixes #2662 - Proxy::Util.escape_for_shell is being used in PuppetRun.run and MCollective.run methods
(cherry picked from commit 4a8411d8d8cfb7510dc8775b5b1b0a0c8c217c69)
fixes #2673 - none/wildcard http 'accept' headers are being handled correctly now
(cherry picked from commit c164bdd6e754a32d1923340bb9336c649ef8390a)
Release 1.2.0-RC3