Remove expired ports:

Adjusted for ports rescued since r534032

2020-05-05 audio/festvox-czech: Broken for more than 6 months
2020-05-05 audio/gkrellmvolume2: Broken for more than 6 months
2020-05-05 audio/mixmos: Broken for more than 6 months
2020-05-05 audio/mma: Broken for more than 6 months
2020-05-05 audio/pd-cyclone: Broken for more than 6 months
2020-05-05 audio/shorten: Broken for more than 6 months
2020-05-05 audio/taglib-sharp: Broken for more than 6 months
2020-05-05 audio/xhippo: Broken for more than 6 months
2020-05-05 biology/consed: Broken for more than 6 months
2020-05-05 biology/plinkseq: Broken for more than 6 months
2020-05-05 biology/seqtools: Broken for more than 6 months

Deprecate ports broken for more than 6 months

Mark a few ports BROKEN (unfetchable)

lang/mono: update to version 5.2.0.215 (and enhance USES=mono)

Highlights:
 - New Roslyn compiler for C# available
 - Improved support for nuget packages in USES=mono

General:
 - fix pkg-plist: mono now produces '.pdb' debug files instead of '.mdb'
 - bump all dependant ports

USES=mono:
 - properly handle caching of nuget packages
 - add support for multiple feeds for nuget packages
 - add support for nuget dependencies in a separate file
 - add support for paket packages

Fix build with mono 4.4.

Some assemblies have been relocated, so adjust files path to point to the
correct location.

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

With hat:	portmgr
Sponsored by:	Absolight

Fix build with mono 4

Cleanup plist

Stagify
Mark package as jobs unsafe
Convert to USES=mono
Fix plist

Fix properties on pkg-plist

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

Convert USE_GNOME=pkgconfig to USES=pkgconfig
Convert USE_GNOME=gnomehack to USES=pathfix
Convert USE_GMAKE to USES=gmake
Convert USE_PERL5 to USES=perl5

- Trim header

- Add LDFLAGS to CONFIGURE_ENV and MAKE_ENV (as it was done with LDFLAGS)
- Fix all ports that add {CPP,LD}FLAGS to *_ENV to modify flags instead

PR:             157936
Submitted by:   myself
Exp-runs by:    pav
Approved by:    pav

- Get Rid MD5 support

- Fix a couple scripts looking for /bin/bash;

- Update URIs according to the new Banshee website location.

PodSleuth aims to probe, identify, and expose properties and metadata bound to
iPods.