moves

[bued]

When working with moves, there seem to be some bugs, especially with simple, plain text files:
-errors relating to an offset being too large (larger than last position in file?)
-some minor problem with the highlighting: boxes lack one position at the end of the line, but have an additional position at the very beginning of the next line (see pic.)

Also, it would be great to know if you plan to support moves in further updates and expand this feature. Right now, moves are added to the critical apparatus, but at the same time the sequences involved are treated as additions/deletions.