Remove expired ports:

2020-09-15 audio/abraca: Uses deprecated version of python
2020-09-15 audio/ardour5: Uses deprecated version of python
2020-09-15 audio/cplay: Uses deprecated version of python
2020-09-15 audio/cpp-xmms2: Uses deprecated version of python
2020-09-15 audio/p5-xmms2: Uses deprecated version of python
2020-09-15 biology/haplohseq: Uses deprecated version of python
2020-09-15 biology/tophat: Uses deprecated version of python
2020-09-15 chinese/ibus-array: Uses deprecated version of python
2020-09-15 comms/congruity: Uses deprecated version of python
2020-09-15 comms/libbtbb: Uses deprecated version of python
2020-09-15 comms/quisk: Uses deprecated version of python
2020-09-15 databases/mtools-mongodb: Uses deprecated version of python
2020-09-15 databases/mydbf2mysql: Uses deprecated version of python

Deprecate some ports using deprecated version of python

With hat:	portmgr

Remove optional dependency on pygtk2

With hat:	portmgr

e*: Add missing USES={gnome,sdl,xorg}

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

Add explicit build dependency on python2.7

PR:		234633

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

Bump PORTREVISION for ports depending on the canonical version of GCC
in the ports tree (via Mk/bsd.default-versions.mk and lang/gcc) which
has now moved from GCC 6 to GCC 7 by default.

This includes ports
 - featuring USE_GCC=yes or USE_GCC=any,
 - featuring USES=fortran,
 - using Mk/bsd.octave.mk which in turn features USES=fortran, and those
 - with USES=compiler specifying one of openmp, nestedfct, c11, c++0x,
   c++11-lib, c++11-lang, c++14-lang, c++17-lang, or gcc-c++11-lib.

PR:		222542

Adjust USES to fix builds on gcc-based architectures.

While here, pet portlint.

Tested for no regression on amd64.

Approved by:	portmgr (tier-2 blanket)

Prevent PKGBASE collision with science/medit

Quickly fix a segmentation fault when trying to open About dialog, by
clearing `errno' prior to calling strtol(3).

Typically this is not needed (return value must be checked before the
`errno' check), but in case of strtol(3) return value can be zero for
both successful and failed conversions.

Add a port of medit, a programming and around-programming text editor.

WWW: http://mooedit.sourceforge.net/