Zuul trigger no more send GERRIT_* env variable

Recent version of Zuul no more pass GERRIT_* parameters to job. So I
guess we can stop configuring jenkins jobs to use them.

jenkins_jobs/openstack/common/setup.py stills reference GERRIT_REFNAME.
It seems that file got imported from another repository but I have not
found the original repository :(

Change-Id: Ia97319f96a00394b3321a484310975a10f574f13
Support site monitor publisher

This publisher allows to check an URL after the build steps. It requires
the sitemonitor plugin from

https://wiki.jenkins-ci.org/display/JENKINS/SiteMonitor+Plugin

Change-Id: I83026e4db9bd7975a34b7d8e015a4a73c3b09ae8
Merge "Support site monitor publisher"
Added support for Ci Skip Plugin

Change-Id: I033a3dcb46b4a6c8be49ba63150afa05b4622831
Merge "Added support for Ci Skip Plugin"
doc: fixed path including example for description setter

Change-Id: I7bfc7bb5bcc024fdb02fd2b287c92687f7457c77
Enhance project specific parameters example.

It was not clear that the project-specific parameters are actually a variables.
Improving the example to make it more clear.

Change-Id: I919562d4df53542ff0d4d60cf0fafc81b69aff1a
Added clone-workspace publisher

Change-Id: I39c71d69b100206e09164f0b765bda14d6f428c6
Fix misspellings in jenkins-job-builder

Fix misspellings detected by:
* pip install misspellings
* git ls-files | grep -v locale | misspellings -f -

Change-Id: I2443a0a3ae909457ee4f31a6837b445be03de0dc
Closes-Bug: #1257295
Merge "Added clone-workspace publisher"
Merge "Enhance project specific parameters example."
Merge "Zuul trigger no more send GERRIT_* env variable"