Release: Instructions to get QUnit from NPM and Bower

Updates the text from release list to show instructions
on how to get QUnit from NPM and Bower packages.

Ref gh-40
1.14.3
Cookbook: Remove deprecated 2nd arg from asyncTest example

Closes gh-66
Cookbook: Remove trailing whitespace
1.14.4
Index: Update embedded example to use relative paths

A little more obvious for copy & paste

Fixes gh-47
1.14.5
Build: Normalize line endings
added link to qunit-inject dependency injection plugin
1.14.6
Cookbook: Improve test assert examples

Fixes #67
Closes #68

Improves the assert examples making them more relevant.
1.14.7
Typo: "longer then" -> "longer than"
Minor grammar: "built-in" -> "built in"

Either of these are correct, so I chose the second one:

* "a bunch of built-in features"
* "a bunch of features built in"

Reference: http://www.getitwriteonline.com/archive/042703CompWdsHyph.htm

> This is a government-mandated program. 
> The program is government mandated.
Build: Use vagrant for sample config