Update to 2.3.3

* Use distfile's install target, remove pkgsrc one.

Changelog:
unknown.
Updated net/httping to 2.3.3
Bump PKGREVISION.

* Fix build on DragonFly 3.4.1 and 3.5-DEVELOPMENT.
  Use newer bootstrap binary for DragonFly.
* DragonFly 3.5 switches to FreeBSD style math.h.
  Add conditional.

I have no idea about build on very recent DragonFly 3.5.
Updated lang/openjdk7 to 1.7.21nb3
Fix RCS ID.
Don't use multiple RCS IDs, it confuses the +BUILD_VERSION logic.