Mk/**java.mk: Convert bsd.java.mk to USES

The following features have been added or changed:
- Instead of USE_JAVA use USES=java. This defaults to
  USES=java:build,run if NO_BUILD is undefined. Else it defaults to
  USES=java:run
- Instead of USE_ANT=yes use USES=java:ant which also implies
  USES=java:build
- Instead of JAVA_BUILD=yes use USES=java:build. Does not imply run or
  extract
- Instead of JAVA_EXTRACT=yes use USES=java:extract does not imply
  build or run
- Instead of JAVA_RUN=yes use USES=java:run does not imply extract or
  build
- Instead of USE_JAVA=<version> use USES=java and JAVA_VERSION=<version>

Approved by: mat (portmgr), glewis
Differential Revision:  https://reviews.freebsd.org/D48201

Remove WWW entries moved into port Makefiles

Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.

This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.

Approved by:		portmgr (tcberner)

Add WWW entries to port Makefiles

It has been common practice to have one or more URLs at the end of the
ports' pkg-descr files, one per line and prefixed with "WWW:". These
URLs should point at a project website or other relevant resources.

Access to these URLs required processing of the pkg-descr files, and
they have often become stale over time. If more than one such URL was
present in a pkg-descr file, only the first one was tarnsfered into
the port INDEX, but for many ports only the last line did contain the
port specific URL to further information.

There have been several proposals to make a project URL available as
a macro in the ports' Makefiles, over time.

One more small cleanup, forgotten yesterday.
Reported by:	lwhsu

Remove # $FreeBSD$ from Makefiles.

Clean up after java/openjdk6 and java/openjdk6-jre removal

java/openjdk6 support was removed from Mk/bsd.java.mk (r512662) and
java/openjdk6 and java/openjdk6-jre were removed from the ports tree
(r512663).  Now this patch completely removes remaining stuff from the
ports tree.

PR:			241953 (exp-run)
Reviewed by:		glewis
Approved by:		portmgr (antoine)
Differential Revision:	https://reviews.freebsd.org/D22342

Use https in WWW tag.

Fix.

Sponsored by:	Absolight

Cleanup DIST* variables.

When appropriate:
- Try to use DISTVERSION{SUF,PRE}FIX
- Replace PORTNAME-PORTVERSION by DISTNAME
- Convert MASTER_SITES to use macros
- Other light cleanup

With hat:	portmgr
Sponsored by:	Absolight

Support stage

Add NO_STAGE all over the place in preparation for the staging support (cat:
devel part 4)

Convert Makefile headers to the new format in my ports (round #2).

Decommissioning java 1.5 (EOLed since October 2009):
suppress any reference to USE_JAVA=	1.5+ (part1)

-remove MD5

Upgrade to version 1.2.1.

Add a local mirror since the main site gives 404s every now and then.

Zip version of source files disappeared from site: use official tar.gz format
instead.

Switch to using DISTNAME while I'm here.

Noticed by:     erwin

Upgrade to version 1.2.0.

Add swank-clojure, a server that allows SLIME (the Superior Lisp
Interaction Mode for Emacs) to connect to Clojure projects.