Increment SW version

(Forgot to increment it in the previous commit)

Change-Id: I77233f7e0657618fab6c5af49355ea8ee2aef5d7
diff --git a/sw.js b/sw.js
index 14fb7fd..582a7e9 100644
--- a/sw.js
+++ b/sw.js
@@ -1,4 +1,4 @@
-// Version: 1.0.5
+// Version: 1.0.6
 var CACHE_NAME = 'all-v1';
 var urlsToCache = [
   '/',