*: Bump PORTREVISIONs for math/mpc update to 1.3.1

*/*: rename CHEESESHOP to PYPI in MASTER_SITES

PR:			267994
Differential revision:	D37518
Approved by:		bapt

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.

math/py-pygslodeiv2: switch to USES=pytest, fix tests

Reported by:	reprise
Approved by:	portmgr blanket

math/gsl: bump portrevision of consumers after update to 2.7.1

PR:		260201

math/gsl: update to 2.7

From [1]

* What is new in gsl-2.7:
	* fixed doc bug for gsl_histogram_min_bin (lhcsky at 163.com)
	* fixed bug #60335 (spmatrix test failure, J. Lamb)
	* fixed bug #36577
	* clarified documentation on interpolation accelerators (V. Krishnan)
	* fixed bug #45521 (erroneous GSL_ERROR_NULL in ode-initval2, thanks to M.
Sitte)
	* fixed doc bug #59758
	* fixed bug #58202 (rstat median for n=5)
	* added support for native C complex number types in gsl_complex
	   when using a C11 compiler
	* upgraded to autoconf 2.71, automake 1.16.3, libtool 2.4.6

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

Remove # $FreeBSD$ from Makefiles.

Drop python 2.7 support from a few ports

With hat:	portmgr

math/py-pygslodeiv2: Update 0.9.3 -> 0.9.4

Reported by:	portscout

math/py-pygslodeiv2: Update 0.9.2 -> 0.9.3

Reported by:	portscout

math/gsl: update to 2.6

- math/p5-Math-GSL does not seem to have any upstream activity to make it work
with this version -> mark it broken
  - this also breaks the two consumers of this port

- biology/gemma: has a conflict with cblas, and is makred broken.

PR:		241363
Exp-run by:	antoine

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

math/py-pygslodeiv2: fix build on GCC architectures

Add USES=compiler:c++11-lang to fix:
cc1plus: error: unrecognized command line option "-std=c++11"

Approved by:	mentors (implicit approval)

math/py-pygslodeiv2: Update 0.9.1 -> 0.9.2

Reported by:	portscout

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

math/py-pygslodeiv2: Add tests

New port: math/py-pygslodeiv2: Python binding for odeiv2 in GNU Scientific
Library (GSL)