Update libsass to version 3.4.7

mgreter · mgreter · commit c4a88a59b429 · 2017-11-14T01:09:03.000+01:00
diff --git a/libsass b/libsass
@@ -1 +1 @@
-Subproject commit 348ff6fa153447141b7f0e8faadd956de47d8118
+Subproject commit c943792a6e64468b66f226504a47a8160cbd2d08
diff --git a/plugins/img-size b/plugins/img-size
@@ -1 +1 @@
-Subproject commit 55826d17c7e0abb15bc640eedfd0447a5fd8de0c
+Subproject commit 5be8cca30c7eee3a15bf07b2b62ef3047cf82723
