Reorganize some my ports for better discoverability

devel/onscripter{,-1byte} -> games/onscripter{,-1byte}
devel/ponscripter-sekai -> games/ponscripter-sekai
devel/renpy{,6} -> games/renpy{,6}
devel/rlvm -> games/rlvm
dns/openmdns -> net/openmdns (where Bonjour and Avahi are)

devel/renpy: update to 7.0.0

Changes:	https://www.renpy.org/release/7.0 (see Announcment)
Changes:	https://www.renpy.org/doc/html/changelog.html#renpy-7-0
MFH:		2018Q2 (stabilization, no in-tree consumers)

devel/renpy: unbreak with cython 0.28

PR:		228235
Obtained from:	upstream

devel/renpy6: mark BROKEN after r470010

Error compiling Cython file:
------------------------------------------------------------
..
IMAGEDISSOLVE = 2
PIXELLATE = 3

cdef class Render:

    def __init__(Render self, float width, float height, draw_func=None,
layer_name=None, bint opaque=None): #@DuplicatedSignature
                                                                                
                    ^
------------------------------------------------------------

/wrkdirs/usr/ports/devel/renpy6/work-py27/renpy-6.18.3-sdk/renpy/display/render.pyx:451:102:
Cannot assign None to bint

multimedia/ffmpeg: update to 4.0

- FFSERVER support was removed upstream
- libressl now uses libtls backend instead of patching openssl one
- Clang i386 no longer uses 16-byte aligned stack

Changes:	https://git.ffmpeg.org/gitweb/ffmpeg.git/blob/n4.0:/Changelog
ABI:		https://abi-laboratory.pro/tracker/timeline/ffmpeg/
PR:		227726
Exp-run by:	antoine
Differential Revision:	https://reviews.freebsd.org/D15175

devel/renpy6: unbreak with ffmpeg 4.0

ffdecode.c:840:67: error: use of undeclared identifier 'CODEC_CAP_DELAY'
                if (!pkt_temp->data && dec->codec->capabilities &
CODEC_CAP_DELAY)
                                                                  ^
ffdecode.c:1246:29: error: use of undeclared identifier 'CODEC_FLAG2_FAST'
    if(fast) enc->flags2 |= CODEC_FLAG2_FAST;
                            ^

PR:		227726

Bump PORTREVISIONs of all users of math/mpc that we just updated to
version 1.1.0 (via revision 464079).

multimedia/ffmpeg: update to 3.4

Notable changes:
- i386/amd64 now depend on NASM per
https://git.ffmpeg.org/gitweb/ffmpeg.git/commitdiff/4f9297ac3b39
- NETCDF is now MYSOFA but the dependency doesn't exist in ports yet
- SCHROEDINGER is gone per
https://git.ffmpeg.org/gitweb/ffmpeg.git/commitdiff/220b24c7c9
- DRM, LIBRSVG2, LIBXML2 are new options
- ABI isn't completely compatible: some structs have changed

Minor cleanup:
- Don't pass --disable-{in,out}dev when it's already blocked by disabled
dependency
- Drop redundant "Enable" from option descriptions
- Switch CDIO_DESC to use Mk/bsd.options.desc.mk

Changes:	https://git.ffmpeg.org/gitweb/ffmpeg.git/blob/n3.4:/Changelog
ABI:		https://abi-laboratory.pro/tracker/timeline/ffmpeg/
PR:		223057
Exp-run by:	antoine

Chase ffmpeg 3.3 update (ABI changes)

PR:		218658
Submitted by:	riggs

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)

devel/renpy6: bring back cython fixes lost in r421472

$ katawa-shoujo
KeyError(4294967295,)

Full traceback:
  File "renpy/common/00start.rpy", line 152, in script
    $ ui.interact(suppress_underlay=True, suppress_overlay=True)
  File "/usr/local/share/renpy/renpy/ast.py", line 785, in execute
    renpy.python.py_exec_bytecode(self.code.bytecode, self.hide,
store=self.store)
  File "/usr/local/share/renpy/renpy/python.py", line 1382, in py_exec_bytecode
    exec bytecode in globals, locals
  File "renpy/common/00start.rpy", line 152, in <module>
    $ ui.interact(suppress_underlay=True, suppress_overlay=True)
  File "/usr/local/share/renpy/renpy/ui.py", line 247, in interact

devel/renpy: add 6.18 slave for compatibility with games/katawa-shoujo

PKGNAMESUFFIX is based on 6.99.11 being "the latest in a series of
releases that will culminate in Ren'Py 7".