JSHint: remove ES5, set scripturl in test, wrap use strict in test template

- Remove ES5 option from project jshintrc as it's now set per default
- Set ```scripturl: true``` in test/test.js to make jshint happy about seeing ```mocha``` in the file
- Move ```'use strict';``` inside the wrapping function in the test template, to make jshint happy when the template is used in projects that have no ```node: true``` set
- Some whitespace fixes