Order the packages by version number.
Do not show versions of packages that are not used in a buildout.
Merge pull request #2 from markvl/master

Fix issue #1: Not all packages are shown
Merge pull request #3 from markvl/package_list_improvements

Package list improvements
Sort packages with python sort method + lambda so that we're actually sorting ints instead of chars.
Preparing for a 0.2 release.
Uses twitter bootstrap for cleaner styles.
Show which tab is active in top link bar.
Removed unused templates.