Bump to newest parent version

Just because I can :-P

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
We do not really handle the xml extension

The intent was to handle pom.xml files properly; we will have to
special-case pom.xml files in the script editor if we want to support
compile & run because we'll have to figure out the main class from the
POM and then ask the script engine to run that class.

This happens to address half of
http://fiji.sc/bugzilla/show_bug.cgi?id=804, reported by Graeme Ball:
.xml files were misinterpreted as scripts by Fiji/ImageJ2.

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