Issue 4721 - Use IndexedDB for storage in Edge

edge/localforage.min.js

Index: edge/localforage.min.js
===================================================================
new file mode 100644
--- /dev/null
+++ b/edge/localforage.min.js
@@ -0,0 +1,7 @@
+/*!
+    localForage -- Offline Storage, Improved
+    Version 1.2.4
+    https://mozilla.github.io/localForage
+    (c) 2013-2015 Mozilla, Apache License 2.0
+*/
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