Add ability to serve CSS files to the synchronous calls of LoadBy File/Name/Definition.
Package files use lower-case esses for see ess ess.
Update tests with lower-case esses.
Handle the case when CSS or JavaScript files do not exist in the package.
Variable declaration change from CR.
Merge pull request #7 from Brightspace/nstonehouse/vui-baseline/synchronous-css

Add ability to serve CSS files to the synchronous calls of LoadBy File/N...