Update the test to normalize to Unix line endings before comparing.
Pass URL from ServletContext.getResource() directly to LessEngine.

ServletContext.getResource() can return jndi URLs, and getPath() returns a
string that isn't a valid file path. Just pass the URL to LessEngine.
Remove duplicated code, only keep URL method, update tests.
Merge pull request #3 from timkingman/master

Pass URL directly to LessEngine