Bump LibZipSharp/c6379dee (#130)

dellis1972 · jonpryor · commit 4f93312f43e5 · 2016-07-26T08:01:46.000-04:00
Fixes: https://bugzilla.xamarin.com/show_bug.cgi?id=42643 Fixes VS crashing randomly while Archiving the application.
diff --git a/external/LibZipSharp b/external/LibZipSharp
@@ -1 +1 @@
-Subproject commit f4c4c2a09f2f5a23947dc13e057446d39c3b6e70
+Subproject commit c6379dee41de6964052bd609a4ba21cca1508800
