TEMPORARY: Bump MiniMaven version temporarily

Required for the bug fix regarding .jar file generation with sources.
We'll have to skip this once a version pom-scijava defining a MiniMaven
version >= 2.1.1 is released.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Ensure that .jar files include the correct sources

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
'Java' is really the name of the language implemented by this engine

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