Openscope: Sort flight strip lists by drag and drop

[tdawe]

Update the flight strip lists to be sortable using drag and drop. This would improve arrival and departure management of aircraft.

[erikquinn]

This would probably be helpful, but would involve a moderate rework. Looks like it's possible to do it with just the <li>s we have (see here), or it might also need to use something external (such as jQuery UI's "sortable"). Though we are trying to stop using jQuery, but the point is that this may be more of a challenge than it sounds.

[tdawe]

I currently have this working in a private branch using jQuery. It is based off my other pull request for separating arrival and departure strips. I can create a pull request once that one is merged.

[erikquinn]

Funny you should say that, it was merged literally just now :smile: