Merge pull request #19 from tdonohue/master

Fixes to "could not find user postgres" errors and DS-1889 changes
Give unique name to downloaded box

As the default virtualbox from vagrant is called "precise64" and this may be likely to be already present in your environment the installation and provisioning will fail due to unresolved dependencies.
The dependencies are only met in the virtualbox file you provide in config.vm.box_url, so you have to assure that this one is downloaded and used and not the default precise64 from the vagrant maintainer.
Merge pull request #20 from ipf/patch-1

Give unique name to downloaded box
Update README.md

Adding a Table of Contents and Usage Tips section
[DS-2014] tweaked Vagrantfile to use the hosts' DNS resolver to speed up discovery of package repositories and make provisioning more dependable (less timeouts), pre-load the icedtea-7-plugin to help make update-java-alternatives more dependable, revamped how Java 7 is installed and set ast the default, to make Tomcat7 find it more reliably
fixed a typo, variable 'version' doesn't exist, but 'java_version' does
suggestion from Tim Donohue, removed hard coded version of the icedtea plugin
Merge pull request #21 from hardyoyo/DS-2014-Set-up-Java7-reliably

DS-2014 set up java7 reliably