Merge private git for latim grammar into official darcs.

See https://github.com/daherb/GF orhttps://gitlab.cip.ifi.lmu.de/langeh/gf 
for full git commit history

src/latin/ExtraLat.gf

@@ -1,3 +1,11 @@
 concrete ExtraLat of ExtraLatAbs = CatLat ** 
   open ResLat, Coordination, Prelude in {
+  lin
+    UsePronNonDrop p = -- Pron -> NP
+      {
+	g = p.g ;
+	n = p.n ;
+	p = p.p ;
+	s = p.pers ! PronNonDrop ! PronRefl ;
+      } ;
 }