Latvian: 1) added some extra things that are used by the Attempto grammar; 2) added notpresent tags; 3) compiles with Setup.hs and lib/src/Make.hs

lib/src/latvian/ExtraLav.gf

@@ -1,8 +1,11 @@
 --# -path=.:../abstract:../common:../prelude
 
-concrete ExtraLav of ExtraLavAbs = CatLav ** {
+concrete ExtraLav of ExtraLavAbs = CatLav ** open ResLav in {
 
 flags
   coding = utf8 ;
 
+lin
+  GenNP np = {s = \\_,_,_ => np.s ! Gen ; d = Def} ;
+
 }