bump libbson to 1.6.1

ajdavis · ajdavis · commit a805d9c20b34 · 2017-03-06T16:14:36.000-05:00
diff --git a/src/libbson b/src/libbson
@@ -1 +1 @@
-Subproject commit ddac9389985185ed10dd49f4805eb612341b8d33
+Subproject commit 8482d942995eca666ff953341bc443480d087520
