Enhancement/version replicator ui

![version_replicator_and_page_less_-__acs-aem-commons-content__-_acs-aem-commons_-____dropbox_code_acs_acs-aem-commons_code_](https://f.cloud.github.com/assets/1451868/2188777/686fb5ee-980b-11e3-8e8e-ec689ede5ad6.png)

Bunch of UX enhancements (or at least alignments to the ACS Commons Tools pages aesthetic).

Ended up cleaning up the JS and some small enhancements to the servlet. 

See commit messages for full details.

@kalyanar can you take a look? No behavior should've changed.