RAVE-1099 | Introduces Vagrant.

JIRA: https://issues.apache.org/jira/browse/RAVE-1099

This PR introduces vagrant so we don't need to install dependencies on our local machine; now, everything is sandboxed. The vagrant box will use the maven 3.3.1, tomcat7, and oracle's java7 packages. @jmeas and I replaced the information in the `readme.txt` to accurately portray how to start up the vagrant box.

Let me know if this is the appropriate forum for submitting a PR or if we need to send our PR (and how) to the mailing lists.
Also, we might want to just always skip the tests on first install. If all those flags do is turn off the tests, but still install the deps, that's really all I want this to do when the box is started up. Whether or not the tests pass is sort of irrelevant to the set up stage. What do y'all think?