Added some more vagrant testing steps

Also added `$` to front of all sample shell commands.
* Helps ensure user knows it is a command to be run from CLI
* Also discourages bulk copy/paste running of the commands directly from example ( bad practice! )

Change-Id: I7484d77dc3575bb9784ffa6b44437a4f02c63cc8
centos6 support...  well in theory anyways.

Change-Id: Id41cf82280197643b9aeafe045080c776460ce0c
Merge "centos6 support...  well in theory anyways."
Merge "Added some more vagrant testing steps"