Add star to icon font
Allow users to star resorts

List of starred resorts is kept in the cookie, which will allow us to
implement special 'stars' tag (and display only starred resorts)
Starring resort changes style associated with resort panel
Properly update starred items cookie

Instead of overwriting the cookie we add newly starred items, and remove
items that are no longer starred
/stars URL displays stars resorts only

extract common rendering code for /resort /stars and /tag routes
Remove 'all' from tags structure

We generare 'all' tag directly in jade based on the length of 'all'
table.
tag component can update the tag counter

If counter is 0, tag component will hide the tag.
Preserve 'open' state for resorts

If resort has been 'opened' by the used - either by clicking on plus
button, or by displaying this specific resort - it's going to remain
opened until it's closed. Switching to another screen that does not
display this specific resort is not going to switch it to closed state.
Merge branch 'stars'
Release 1.6.0