ScriptsToConcat.java works with root relative URL's

Implemented nelsams fix in the ScriptsToConcat.java file and compiled it
to a class file. This fixes the issue wher the build script couldn't
handle root relative URL's in the script tags.
Merge pull request #101 from tkahn/master

ScriptsToConcat.java/ScriptsToConcat.class that handles root relative URL's