fixed responsive css issues on 2nd page
Front end changes - now shows artist name
added bespoke 404 adnd 500 error pages
Merge branch 'master' of github.com:jordanpoulton/audiogasm
merged master into error-message to add styling and html structure to error pages
Artist filter info provider now artist filter
tiddying up html
Refactored ArtistInfo and Gig info to remove 'provider' words
fixed merge conflicts
Ready for presentation