Extend track-list with rating-color-bubble
moves switching between containers into its own method
Refactore select in radio-button-list
adds single track view, link to track list
Add our own static navbar

Also merge fix.
Highlighting for navigation
Show tracks as table
Nicer new track form
New track form with more bootstrap
removes duplicate headlines, adds form validation
Add remove-button to track-table
Sort list
Fontsize for input ++ fixed layout-margin
adds tracking climbs