devel/ipython5: Remove obsoleted port

Use devel/ipython instead

Fix CONFLICTS entries of multiple ports

There have been lots of missing CONFLICTS_INSTALL entries, either
because conflicting ports were added without updating existing ports,
due to name changes of generated packages, due to mis-understanding
the format and semantics of the conflicts entries, or just due to
typoes in package names.

This patch is the result of a comparison of all files contained in
the official packages with each other. This comparison was based on
packages built with default options and may therefore have missed
further conflicts with optionally installed files.

Where possible, version numbers in conflicts entries have been
generalized, some times taking advantage of the fact that a port

devel/ipython5: Add CPE information

Approved by:    portmgr (blanket)

Remove # $FreeBSD$ from Makefiles.

Remove PY_PYGMENTS

Move devel/py-prompt_toolkit1 to devel/py-prompt-toolkit1

- Bump PORTREVISION for dependency change

devel/ipython5: Use newest version of pygments

The pinned dependency 'pygments<2.6' is only necessary to solve an issue with
Python 2.7, and devel/ipython5 is now python3.5+ only. [1] [2]

This fixes a conflict introduced on ports r549076 and r549418 between
textproc/py-pygments and textproc/py-pygments-25 when building at least
textproc/py-sphinx and math/sage.

1 - https://github.com/ipython/ipython/pull/12174
2 - https://github.com/ipython/ipython/issues/12173

PR:		249131, 250074, 250144
Reported by:	thierry, swills
Approved by:	python (with hat)
MFH:		2020Q4 (build fix, conflicts)

devel/ipython5: Fix build after the recent update of textproc/py-pygments by
adding textproc/py-pygments-25 because ipython5 requires this version

Reported by:	linimon

Fix bulk -a

devel/ipython5: Update to 5.10.0

Changelog:	https://github.com/ipython/ipython/blob/5.x/docs/source/whatsnew/version5.rst#ipython-5100

Update to 5.9.0

- Update manpage location (r523104)
- Add PORTSCOUT

Changes:	https://github.com/ipython/ipython/blob/5.x/docs/source/whatsnew/version5.rst

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

Change RUN_DEPENDS from py-prompt_toolkit to py-prompt_toolkit1

- Bump PORTREVISION for dependency change

Bump a few PORTREVISIONs after r498529

With hat:	portmgr

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

Update WWW

Add devel/ipython5 port

Copy ipython 5.x to it's own port, because it's the last branch that support
both python branches. Current mainline version (6.x) is only support py 3.x.
devel/ipython port would be updated to 6.x per discussion in D16508

With hat:	python
Differential Revision:	https://reviews.freebsd.org/D16508