Add missing Javadoc stubs
Add missing Javadoc stubs

These are useful because Eclipse will report the class that a method
overrides (as "Specified by XYZ" in the Javadoc pane), but only if that
class has Javadoc defined.

And we need to always fill in Javadoc for public API methods anyway.

This used to be revision r4533.

TehSAUCE/imagej,biovoxxel/imagej,biovoxxel/imagej,biovoxxel/imagej,TehSAUCE/imagej,TehSAUCE/imagej