Log message:
Initial import of libmusicbrainz5-5.0.1, a new major version of
libmusicbrainz.

Compared to v3 (in audio/libmusicbrainz) there were the following
changes:

Changes for libmusicbrainz 5.0.1
--------------------------------

   - Fix LMB-32 - Correctly ignore unrecognised nodes
   - Don't compile using -Werror when building from tarball

Changes for libmusicbrainz 5.0.0
--------------------------------

   - Deprecated functions removed

Changes for libmusicbrainz 4.0.3
--------------------------------

   - Fix LMB-32 - Correctly ignore unrecognised nodes
   - Don't compile using -Werror when building from tarball

Changes for libmusicbrainz 4.0.2
--------------------------------

   - Add extra attributes to Alias
   - Add IPI lists to Artist and Label
   - Add 'Ended' to Lifespan
   - Add PrimaryType and SecondaryTypeList to ReleaseGroup
   - Add text based track number to Track
   - Add ISWC list to Work
   - Debug builds show queries and responses on stderr
   - Documentation updates

Changes for libmusicbrainz 4.0.1
--------------------------------

   - Fixed bug LMB-30 - Unable to access all relation lists on objects with
      multiple relation lists
   - Fixed bug LMB-31 - mb_relationlist_get_targettype always returns
      "target-type"

Changes for libmusicbrainz 4.0.0
--------------------------------

   - Added support for collection list being returned as part of a release

Changes for libmusicbrainz 4.0.0 beta 2
---------------------------------------

   - Restructured for easier maintenance
   - List class interface rewritten
   - Added handling of extension elements and attributes
   - Add handling of all list attributes and elements
   - C interface is now automatically generated from an XML file template

N.B. The API has changed with regard to lists since beta 1. Any
applications are likely to need rewriting to take account of this
and will certainly need to be recompiled due to the ABI change.

Changes for libmusicbrainz 4.0.0 beta 1
---------------------------------------

   - Rewritten from scratch for NGS