FolderOpener: remember macro options when converting to grayscale
FolderOpener: remember macro options when converting to grayscale

ImageJ 1.x lost the "Convert to 8-bit Grayscale" checkbox without prior
notice some time ago. The ij1-patcher puts it back, but unfortunately
reset the macro options when converting to grayscale.

Reported by Martin ? in http://fiji.sc/bugzilla/show_bug.cgi?id=707

Signed-off-by: Johannes Schindelin <53fb8db7833fca1e1746dd8592f61048d350f64c@gmx.de>

imagej/ij1-patcher