RE: [maven][jrcs] keyword substitution and regexps

[Juancarlo A�ez]

> If it's just a test, can we move it to a JUnit test?  Without really
> looking, I was under the impression that it was the main entry point
> to the JRCS functionality.

The main entry points to the library are .jrcs.diff.Diff for diffing functionality, 
and .jrcs.rcs.Archive for manipulation of RCS/CVS archives.

To avoid further confusions, I'd say we just remove JDiff.java and JRCS.java. I'll 
save a copy in case someone ever needs them.

Juanco