Bump parent pom

Updated to pom-imagej 2.50
Set script header on first language change

When going from "Language = None" to any other scripting language, the
script editor will now attempt to auto-populate header text.

This feature queries all ScriptHeader plugins for the new script
language and prepends their getHeader contents to the text editor's
contents.
Bump to next development cycle

Signed-off-by: Jenkins <jenkins@dev.loci.wisc.edu>
Merge remote-tracking branch 'upstream/master'
EditorPane: create addHeader flag

We do not always want to create a header - for example, when opening a
template or a file from disk.

The ONLY situation when we want to add headers is when going from a new
file (language = null) to a manually selected language.

Adding an addHeader flag allows us to ensure headers are not added by
mistake.
Bump to next development cycle

Signed-off-by: Jenkins <jenkins@dev.loci.wisc.edu>
Merge remote-tracking branch 'upstream/master'