modifying wait_for module, wait for cloud-init
updating users for ansible-provision
typo
making cloud-init check a pre_task
updating docs for wait_for
search_string changed to search_regex
updating help string
Merge pull request #439 from edx/jarv/wait-for-cloud-init

Jarv/wait for cloud init
Deleted pipeline directions from readme
Merge pull request #441 from edx/will/devstack-readme-edit

Deleted pipeline directions from readme
Merge remote-tracking branch 'origin/master' into jarv/vagrant-releases

Conflicts:
	vagrant/devstack/README.rst