Remove the Fiji Build dependency

Nothing should use 'fake' anymore.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Depend on the new MiniMaven now

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Do not override versions managed by pom-imagej

pom-fiji has pom-imagej as parent now, so let's let that POM manage
all them ImageJ component versions...

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