Update to sentry-swift 2.1.6

HazAT · HazAT · commit ad9a437bb074 · 2017-03-31T16:49:46.000+02:00
diff --git a/ios/Sentry b/ios/Sentry
@@ -1 +1 @@
-Subproject commit 7e0ae98ad49c16331a43c9a58b03be3e56c7a5a3
+Subproject commit ab11de7595b9b0df122addc5f4dde03622d75f1c
