Input editor columns should either automatically appear in their sorted position, or should not do that after re-loading the movie

[YaLTeR]

When you add new input columns they appear in the end, but when you re-load the movie and check the input editor the columns are sorted. I think the behavior should be stabilized to either one or another.

[clementgallet]

Now in 2f14059, the movie stores the input column order, which fixes this issue as well.