*: Bump PORTREVISIONs for math/mpc update to 1.3.1

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.

Style: improve ONLY_FOR_ARCHS_REASON (grammar, markup, etc.)

ONLY_FOR_ARCHS_REASON is used as part of the sentence and thus should
start with lower-case letter and not end with a period which is added
by the framework, similar to other knobs like BROKEN, IGNORE, et al.

While here, remove needless quoting, add missing Oxford comma, expand
contractions and jargonisms, use correct spelling for proper names.

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

Remove # $FreeBSD$ from Makefiles.

Bump PORTREVISION for ports depending on the canonical version of GCC
as defined in Mk/bsd.default-versions.mk which has moved from GCC 8.3
to GCC 9.1 under most circumstances now after revision 507371.

This includes ports
 - with USE_GCC=yes or USE_GCC=any,
 - with USES=fortran,
 - using Mk/bsd.octave.mk which in turn features USES=fortran, and
 - with USES=compiler specifying openmp, nestedfct, c11, c++0x, c++11-lang,
   c++11-lib, c++14-lang, c++17-lang, or gcc-c++11-lib
plus, everything INDEX-11 shows with a dependency on lang/gcc9 now.

PR:		238330

Related to revision 499061 bump ports with USES=fortran to have them
benefit from the improved situation where libgcc_s is only used when
absolutely necessary.

Suggested by:	tijl

Bump PORTREVISION for ports depending on the canonical version of GCC
defined via Mk/bsd.default-versions.mk which has moved from GCC 7.4 t
GCC 8.2 under most circumstances.

This includes ports
 - with USE_GCC=yes or USE_GCC=any,
 - with USES=fortran,
 - using Mk/bsd.octave.mk which in turn features USES=fortran, and
 - with USES=compiler specifying openmp, nestedfct, c11, c++0x, c++11-lang,
   c++11-lib, c++14-lang, c++17-lang, or gcc-c++11-lib
plus, as a double check, everything INDEX-11 showed depending on lang/gcc7.

PR:		231590

science/namd: Remove RESTRICTED because LICENSE_PERMS is restrictive

Reported by:	mat

science/namd: Add IGNORE clause instead of the custom do-fetch clause for the
licensing warning

Also add RESTRICTED, and remove GIT_URL.

Reported by:	mat

science/namd: Downgrade 2-12-211 -> 2.12

Direct fetch from the git server might be a license violation.
Will try to get an agreement from UIUC that the previous fetch can be returned.
Not adding PORTEPOCH, because it was nothing wrong technically with 2.12.211.

Suggested by:	linimon, adamw

science/namd: Change LICENSE_PERMS: no redistribution is allowed.

New port: science/namd: Computer software for molecular dynamics simulation