Remove expired ports:
2017-04-30 multimedia/avbin: Unfetchable for more than six months (google code
has gone away)
games/gondola: Depends on expired multimedia/avbin
2017-04-30 sysutils/flyback: Unfetchable for more than six months (google code
has gone away)
2017-06-30 multimedia/py-ffmpeg: Depreciated upstream in favour of ffpyplayer
2017-07-31 mail/dovecot: Deprecated by upstream years ago. Use mail/dovecot2
instead

Chase ffmpeg 3.3 update (ABI changes)

PR:		218658
Submitted by:	riggs

multimedia/py-ffmpeg: fix expiration date.

Reported by:	dvl@

multimedia/py-ffmpeg: depreciate, concurrent

 - Mark port as depreciated, as done upstream
 - Mark port as supporting concurrency (and sort USE_PYTHON)
 - Fix python versioning (it does not depend on the python2 metaport)

Regular USE_GITHUB cleanup.

Do not set DISTNAME.
Do not set WRKSRC, if you feel like you need to, you should fix
GH_PROJECT instead.

Sponsored by:	Absolight

multimedia/ffmpeg: update to 3.2.2

Changes:	https://git.ffmpeg.org/gitweb/ffmpeg.git/blob/n3.2.2:/Changelog
PR:		207547
Submitted by:	riggs, ebirth@b0ss.net (libressl fix)
Exp-run by:	antoine (3 tries)

multimedia/py-ffmpeg: adjust pts after r425471

AVFrame.pkt_pts didn't exist in ffmpeg-4f7d2fe-2010-12-16 snapshot when
global_video_pkt_pts was added to py-ffmpeg. The code worked it around by
saving PTS in AVFrame.opaque just before avcodec_decode_video2() call. This
broke when r425471 removed our_get_buffer(). So, just use AVFrame.pkt_pts
directly now.

PR:		214247
Approved by:	dbn (maintainer)

multimedia/py-ffmpeg: unbreak build with ffmpeg 3.x

ffmpeg/_ffmpeg.c:8559:23: error: no member named 'get_buffer' in 'struct
AVCodecContext'; did you mean 'get_buffer2'?
    __pyx_v_codecCtx->get_buffer = __pyx_f_6ffmpeg_7_ffmpeg_our_get_buffer;
                      ^~~~~~~~~~
                      get_buffer2
/usr/local/include/libavcodec/avcodec.h:2565:11: note: 'get_buffer2' declared
here
    int (*get_buffer2)(struct AVCodecContext *s, AVFrame *frame, int flags);
          ^
ffmpeg/_ffmpeg.c:8568:23: error: no member named 'release_buffer' in 'struct
AVCodecContext'
    __pyx_v_codecCtx->release_buffer =
__pyx_f_6ffmpeg_7_ffmpeg_our_release_buffer;
    ~~~~~~~~~~~~~~~~  ^

PR:		214247
Approved by:	dbn (maintainer)

Remove ${PORTSDIR}/ from dependencies, categories m, n, o, and p.

With hat:	portmgr
Sponsored by:	Absolight

Don't set DISTNAME when using USE_GITHUB and MASTER_SITES=GH, the
framework already sets a unique DISTNAME.

With hat:	portmgr
Sponsored by:	Absolight

multimedia/py-ffmpeg: use new USE_GITHUB.

Update USE_GITHUB so it does not require GH_COMMIT.

Using this new scheme allows only setting the _tag_ or _commit hash_ in
GH_TAGNAME and not having to know the hash for a tag.  This scheme will
download a tarball that has a different checksum than before due to a changed
directory name for extraction.

The following MASTER_SITES are provided to retain the old checksum and
directory structure (that require GH_COMMIT):
  GH -> GHL
  GITHUB -> GITHUB_LEGACY

Differential Revision:	https://reviews.freebsd.org/D748
Submitted by:	amdmi3
Reviewed by:	mat, swills, antoine, bdrewery
With hat:	portmgr

Replace USES=libtool:oldver with USES=libtool or USES=libtool:keepla in
the 32 ports that still use it.  Bump PORTREVISION on their dependent
ports except the ones that depend on these:

audio/libogg
audio/libvorbis
devel/pcre
ftp/curl
graphics/jpeg
graphics/libart_lgpl
graphics/tiff
textproc/expat2
textproc/libxslt

In these cases the same trick as in the recent gettext update is used.

- Convert ports of multimedia/ to new USES=python

Approved by:	portmgr (implicit)

Update the default version of GCC in the Ports Collection from GCC 4.7.4
to GCC 4.8.3.

Part II, Bump PORTREVISIONs.

PR:		192025
Tested by:	antoine (-exp runs)
Approved by:	portmgr (implicit)

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.

Add emulators/py-ffmpeg 1.2.4.

This is python bindings for ffmpeg, specifically designed for Android for
use by Kivy (x11-toolkits/py-kivy).