Need reviewer: demo fixes from a long time ago ...

[Kelly O'Hair]

Need reviewer for these 2 demo fixes:

6685150: make/mkdemo/jpda/Makefile creates jpda.jar and src.zip instead of examples.jar
6710813: SwingSet2 source display tabs do not work since JDK 7 b20
http://cr.openjdk.java.net/~ohair/openjdk7/jdk7-build-demos/webrev/

The SwingSet2 demo was special because it includes it's sources inside the jar file.

The jpda demo was special in that it historically only included sources in it's jar, and
was called examples.jar.

-kto