Improved tei support and script

Change-Id: I62fc97828aec1a1acec7d22f8892f54ed6d81803
diff --git a/Makefile.PL b/Makefile.PL
index 972d207..f278586 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -36,5 +36,6 @@
 	't/index/*.t ' .
 	  't/sgbr/*.t ' .
 	    't/real/*.t'
-	  }
+	  },
+  EXE_FILES => ['script/korapxml2krill']
 );