commit development & production copies of main stylesheet
apply fixed height to the contact form
whitespace cleanup
add ladda submit button (see msg)

-add ladda css file to Sass build in grunt/cssSource/styles.scss
-list both js/vendor/ladda.min.js and js/vendor/spin.min.js as RequireJS dependencies in js/config.js
-remove jQuery as a RequireJS shim in js/config.js...it's already set up for AMD so this is OK
-add Ladda class references in the HTML in _includes/aside_partial.html