Bump component versions

The following changes were made:
	ij1-patcher.version = 0.9.1 (latest net.imagej:ij1-patcher)
	imagej-common.version = 0.7.6 (latest net.imagej:imagej-common)
	imagej-launcher.version = 3.1.2 (latest net.imagej:imagej-launcher)
	imagej-plugins-commands.version = 0.2.2 (latest net.imagej:imagej-plugins-commands)
	imagej-ui-swing.version = 0.4.7 (latest net.imagej:imagej-ui-swing)
	imagej-updater.version = 0.3.9 (latest net.imagej:imagej-updater)

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Bump imagej and imagej-legacy preemptively

This leads up to the next release candidate, including such beautiful
fixes as the threaded (dreaded) macro-options fix.

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