Remove unstaged lang/ezm3 and three cvsup* ports as casualties

Add DOCS to OPTIONS_DEFINE to ports that check for PORT_OPTIONS:MDOCS.

Convert to staging.
While here, defang a var!= assignment and move it into the do-whatever: targets.

Add NO_STAGE all over the place in preparation for the staging support (cat:
net)

Please bmake(1) as well as make(1)

Duplicate EXTRACT_DEPENDS to FETCH_DEPENDS, to fix build under
the new no-network-after-fetch-stage regime.

Fix build on amd64 if cvsup is unconfigured:
Use cvsup-without-gui instead to get sources extracted.

Switch MAINTAINER line to FreeBSD address.

Approved by: garga (mentor, implicit)

- Welcome X.org 7.2 \o/.
- Set X11BASE to ${LOCALBASE} for recent ${OSVERSION}.
- Bump PORTREVISION for ports intalling files in ${X11BASE}.

- Support file names that contains blanks

PR:             ports/105264
Submitted by:   Rudolf Cejka, Brno University of Technology, Brno, Czech
Republic
Approved by:    Matthias Andree (maintainer)

cvsupchk is a python script that checks a CVSup maintained directory hierarchy
against the corresponding CVSup checkouts file. It looks for a number of
anomalies: missing checked out files, deleted files being present, extra RCS
files, 'dead' directories being present and so on.

PR:             ports/88587
Submitted by:   Matthias Andree <matthias.andree@gmx.de>