update to latest gisconverter version

diff --git a/library/gisconverter b/library/gisconverter
index c6ec9a39195e9b1a58b9a4413a9a6fa090057ecb..cc84eceee4c3aabfab7f38cb055237439368dcfb 160000 (submodule)
--- a/library/gisconverter
+++ b/library/gisconverter
@@ -1 +1 @@
-Subproject commit c6ec9a39195e9b1a58b9a4413a9a6fa090057ecb
+Subproject commit cc84eceee4c3aabfab7f38cb055237439368dcfb