wip/eclipse upgrading to 4.2.1

[Mayuresh <mayuresh%acm.org@localhost>]

I have upgraded wip/eclipse to latest 4.2.1 and it is working for me. (Not
committed.)

I just replaced "helios" with "juno" in the MASTER_SITE, and updated PLIST
and distinfo and things worked.

I am on NetBSD 6.0 RC2 i386, openjdk7-bin.

However I am not sure why this eclipse does not include the
plugin-development environment.

From the MASTER_SITE URL it appears that this is a restricted version for
Java development.  Is this due to any constraints (e.g. is full eclipse
IDE having some problems working on NetBSD?)

Mayuresh.