SeatGeek - use Price N/A instead of a long dash if there is no price info
Merge branch 'seatgeek' of https://github.com/MariagraziaAlastra/zeroclickinfo-spice into jag/seatgeek

Conflicts:
	share/spice/seat_geek/seat_geek.js
SeatGeek: Add color classes so that they work on themes.