Update qhint.js

If you're trying to run qHint locally, the XHR will return a 0 status even though it was successful. In Chrome, you will have to run with --allow-file-access-from-files
Fix style error
Fix test
Global QUnit assertions are deprecated and will eventually be removed.

Use either the assert object passed into test methods or the global
QUnit.assert instead
Merge pull request #6 from JeffreyFalgout/fix-local-access

Fix local file access
Merge pull request #7 from JeffreyFalgout/fix-deprecated-practice

Fix deprecated use of global asserts