Add new dispatch rules

Also renamed 'templates/contact.tpl' to 'templates/submit.tpl'
Add bootstrap 3 libs
Add new UI templates
Minor CSS tweaks

Add new comment template
Cleanup libs
Add new bootstrap css theme
Add Zotonic logo to footer
Add link to browse categories

Also add template for the categories page
Minor CSS fix to comments list
Display project source url separately from project website
Better formatting of main navbar
Better alignment of page elements
Add 'page_zmr_categories' to dispatch rules
Merge pull request #2 from mawuli-ypa/new-ui

Update website user interface