A few projects used excess '' for node declarations, remove them.
We had 17 'ubuntu-trusty' and 285 ubuntu-trusty,
and 25 'ubuntu-xenial' and 744 ubuntu-xenial.
This changes all node names for consistency, thus making search easier.
Change-Id: I0cf565d1e31ea246f3b9d93bbd8de9980df4c684
We do not need gerrit-git-prep anymore, zuul-git-prep works on all our
slaves and has the advantage of using zuul-cloner so that the local
cache is used and Depends-On works.
Remove gerrit-git-prep and use zuul-git-prep instead everywhere.
Change-Id: I2f106af58f78fceaf3c497fe43e6f5a002695645
Rst2bash is a parser which creates Bash code from RST. Install guides
will be automatically parsed to Bash and training-labs is used to
validate generated Bash code.
Needed-By: Ie38a69fb2a64216122f2a9feffdf35218356453f
Change-Id: Ibbafbaae49279acf2bf63e5cdd19b1f0433f826d