Added styles for "BestMix" feature

Styled labels for hotel rank based on type and city and resized
thumbnails.
Implemented logic for "BestMix" feature, some refactoring
Added tab switching listener

Fixed updating of active tab when tabbing is done through newly added
"Show similar hotels" link.
Added all hotel types to "BestMix" since it looks so nice :)
Merge branch 'master' into gh-pages