Fixed snippets page, shows the sidebar on the side and not under the table
Fixed the list of top users in the homepage
Added Ubuntu-style footer
Removed unused role
Merge pull request #1 from rpadovani/littleFixes

Improvements from rpadovani:
- In the snippets page now the sidebar is on the right side of the table, and not below it
- In the homepage the list of top users is shows correctly also on small screens
- Added footer