build: bump for libbson.

Christian Hergert · Christian Hergert · commit 537d046a9cb7 · 2014-03-20T16:03:39.000-07:00
diff --git a/src/libbson b/src/libbson
@@ -1 +1 @@
-Subproject commit 1a28b20cb6f18f2b78119b3d0c0452d33e1c51c1
+Subproject commit c3943c17e3832482c9213e61a63cf7b70053b396
