Bump to preemptively bumped parent version

That version also lists the ij1-patcher version we now require at minimum.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Implement interceptDragAndDropFile

This allows us to intercept drag-and-drop file requests and pass them to
SCIFIO.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Do not intercept dragged 'n dropped LUTs

Otherwise, ImageJ 1.x will not apply them properly.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Merge branch 'open-drag-n-drop'

This topic branch lets SCIFIO handle dragged 'n dropped files (except
for lookup tables, which are special).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>