lang/pypy3: update to 5.2.0-alpha1

Changes to lang/pypy3:
 - "Rename" from pypy3-devel (functionaly it is a rename, technically pypy3
   is a new port and pypy3-devel is deleted).
 - Make lang/pypy3 a slave port of lang/pypy

Changes to lang/pypy:
 - Use DISTVERSION instead of PORTVERSION (lang/pypy3 is not
   PORTVERSION clean)
 - Change PYPY_CFFI_VER to include the 'pypy-' prefix (lang/pypy3 has
   'pypy3-' as a prefix)
 - Only make PYPY_MINMEM the default is ${LOCALBASE}/lang/pypy exists
 - Fix build depends for PYPY_MINMEM
 - Allow slave port to have custom patch directory

many ports: mark broken on powerpc64

Remove ${PORTSDIR}/ from dependencies, categories h, i, j, k, and l.

With hat:	portmgr
Sponsored by:	Absolight

Update lang/pypy3-devel to 2.4.0.

Changes:
 * Carry across _sqlite.py fix from lang/pypy
 * Strip cffi shared libraries (from lang/pypy)

Change Log:
 - Various fsencode PEP 383 related fixes to the posix module (readlink, uname,
   ttyname and ctermid) and improved locale handling
 - Fixed a couple different crashes related to parsing Python 3 source code
 - internal refactoring in string and GIL handling which led to significant
   speedups
 - improved handling of multiple objects (like sockets) in long-running
   programs. They are collected and released more efficiently, reducing memory
   use. In simpler terms - we closed what looked like a memory leak

Cleanup plist

- Convert ports of irc/ and lang/ to new USES=python

Approved by:	portmgr (implicit)

- Chase database/sqlite3 slib bump

Approved by:	portmgr (myself)

Update my ports to be compliant with new USES framework and fix other issues.

Changes:
 * various: migrate USE_BZIP2 to USES=tar:bzip2
 * various: migrate USE_XZ to USES=tar:xz
 * multimedia/py-ffmpeg: add and prefer github (GH) as master site
 * ports-mgmt/portbuilder: specify license as BSD2CLAUSE (instead of just BSD)

Most ports are updated infrequently so a single batch commit is preferred over
collating changes per port.

Do not violate stagedir

Reported by:	poudriere
With hat:	portmgr

Python cleanup:
- USE_PYTHON* = 2.X -> USE_PYTHON* = 2
- USE_PYTHON* = 2.X+ -> USE_PYTHON* = yes
Reviewed by:	python (mva, rm)
Approved by:	portmgr-lurkers (mat)

Remove LATEST_LINK from my ports and fix CONFLICTS for lang/pypy.

Add stage support to lang/pypy, lang/pypy-devel and lang/pypy3-devel.

Also, require a modern compiler that can handle c11.  Although this is
not strictly required (just about any C compiler would do) the base GCC
compiler has a memory bug and thus cannot reasonably compile the ports.

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

Fix the pypy ports.

Be more aggresive in cleaning up temporary directories that pypy leaves
behind in the copied directories (files and directories in __pycache__).
Only .so and .pyc should be left behind in those __pycache__ directories
and no subdirectories.

Also remove the manual requirement for building lang/pypy. Redports
successfully built lang/pypy3-devel (with leftovers) in 19 hours.

Reported by:	Redports

Backport and fix-up lang/pypy* ports.

pypy:
 - fix sysconfig.py's include path
 - bump PORTREVISION due to above fix

pypy-devel:
 - remove duplicate '-e' when creating pkg-plist
 - ancillary port functionality (thus no PORTREVISION bump)

pypy3-devel:
 - add missing patch
 - fix pkg-plist
 - build fails without above patch (thus no PORTREVISION bump)

Introducing lang/pypy3-devel version 2.1.b1.

Highlights
 - The first release of PyPy3: support for Python 3, targetting CPython 3.2.3!
 - There are some known issues including performance regressions (issues
     #1540 & #1541) slated to be resolved before the final release.