updating the commoncluster plays so that they can be run from jenkins
run-ansible for jenkins job
remove echo, add verbosity
fixing extra var
run as the ubuntu user
adding unbuffered python
renaming params and setting migrate option
missing _tag
+= for ansible_limit
typo
removing discern from cont integration
Merge pull request #1131 from edx/jarv/remove-discern

removing discern from cont integration
Merge pull request #1127 from edx/jarv/elb-pre-post

updating the commoncluster plays so that they can be run from jenkins
Add vagrant capability for jenkins_master.
Skip chown of motd.d files for vagrant machines.