Airlines: Sort by departure date.
Airlines: Add a comment that explains the sorting.
Airlines: Added minItemsForModeSwitch

It's a ridiculously long variable name for telling the spice that we need to enable grid view with minItemsForModeSwitch number of items shown. We're doing this because we have wide tiles.
Airlines: Fixed mobile view.
Merge pull request #796 from duckduckgo/jag/airlines

Airlines: Sort by departure date.