Add author and version.

headset/headset.ttl

@@ -1,4 +1,5 @@
 @prefix doap:  <http://usefulinc.com/ns/doap#> .
+@prefix foaf:  <http://xmlns.com/foaf/0.1/> .
 @prefix lv2:   <http://lv2plug.in/ns/lv2core#> .
 @prefix rdf:   <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
 @prefix rdfs:  <http://www.w3.org/2000/01/rdf-schema#> .
@@ -13,15 +14,22 @@
 <http://noise.rocks/lv2-ben/headset>
  a lv2:Plugin ,
  lv2:SpatialPlugin ;
+ lv2:minorVersion 0 ;
+ lv2:microVersion 1 ;
  doap:created "2017-08-08" ;
  doap:shortdesc "A simple binaural spatializer" ;
  doap:programming-language "C" ;
+ doap:maintainer [
+     foaf:name "Benoît Rouits" ;
+     foaf:homepage <https://git.noise.rocks/ben/lv2-ben> ;
+     foaf:mbox <mailto:ben@noise.rocks> ;
+ ] ;
  doap:name "Binaural Spatializer" ;
  doap:name "Binaural Spatializer"@en ;
  doap:name "Spacialisateur binaural"@fr ;
  doap:license <http://usefulinc.com/doap/licenses/gpl> ;
  lv2:optionalFeature lv2:hardRtCapable ;
- ui:ui <http://noise.rocks/lv2-ben/headset#ui>;
+ ui:ui <http://noise.rocks/lv2-ben/headset#ui> ;
 
  lv2:port [
   a lv2:InputPort ,