Log Message:
We allow several JDKs/JREs to coexist, installing them in separate
subdirectories under ${PREFIX}/java/ -- Change V of many.

Thus install this JRE into ${PREFIX}/java/sun-1.4.0 and remove
CONFLICTS with other JDKs/JREs.  Rename package from sun-jre-1.4.0
to sun-jre14-0 (avoids conflict with sun-jre13).

Split Makefile into Makefile and Makefile.common, to allow reusing
of some of the stuff in lang/sun-jdk14 (commit coming up).

Add informative MESSAGE and finally bump PKGREVISION.