Remove # $FreeBSD$ from Makefiles.

Add USES=xorg USES=gl, ports categories x

Add USES=xorg and USES=gl to ports in categories starting with 'x'
While here, try to sprinkle other USES (mostly gnome and sdl) as needed.

- Fix trailing whitespace in pkg-descrs, categories [p-x]*

Approved by:	portmgr blanket

MASTER_SITES cleanup.

- Replace ${MASTER_SITE_FOO} with FOO.
- Merge MASTER_SITE_SUBDIR into MASTER_SITES when possible. (This means 99.9%
  of the time.)
- Remove occurrences of MASTER_SITE_LOCAL when no subdirectory was present and
  no hint of what it should be was present.
- Fix some logic.
- And generally, make things more simple and easy to understand.

While there, add magic values to the FESTIVAL, GENTOO, GIMP, GNUPG, QT and
SAMBA macros.

Also, replace some EXTRACT_SUFX occurences with USES=tar:*.

Checked by:	make fetch-urlall-list
With hat:	portmgr
Sponsored by:	Absolight

Rename x11/ patch-xy patches to reflect the files they modify.

Support stage

Add NO_STAGE all over the place in preparation for the staging support (cat:
x11)

Convert to USES=imake
Trim headers
Convert emu to USES=display
Remove indefinite article

- Get Rid MD5 support

Convert most of remaining ports that depend on xorg-libraries to
modular xorg.

- supply corresponding USE_XORG for all imake-using ports that need it
- USE_IMAKE no longer implies USE_XLIB in absence of USE_XORG
- retire USE_X_PREFIX which is not really used anywhere after the
  above change
- a few minor nits like whitespace and SF macro

Tested by:      2 tinderbox runs by pav
Approved by:    portmgr (pav)

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

- Add SHA256

Use PLIST_FILES.

Reviewed by:    marcus

SIZEify.

De-pkg-comment.

Correct manpage examples, and fix build warnings.    

Convert category x11 to new layout.  

Use USE_IMAKE    

xwatchwin allows you to peek at a window on another X server.   To use it, you
must specify the display name of the machine you want   to watch, then the name
of the window on that machine.   Xwatchwin will attempt to connect with the X
server   hostname:0.0, and if successful, will try to retrieve a copy of   the
window in which you specified interest.