Minor refactoring of /pad/ ; moved /*/main.js into a common file ; framework'd /code/

www/common/sframe-common.js

@@ -289,6 +289,15 @@ define([
 
     Object.freeze(funcs);
     return { create: function (cb) {
+
+        // TODO(cjd): This is crap but this gets loaded multiple places by /code/ and it is
+        //            not ok with being loaded more than once.
+        if (window.CryptPad_sframe_common) {
+            setTimeout(function () { cb(window.CryptPad_sframe_common); });
+            return;
+        }
+        window.CryptPad_sframe_common = funcs;
+
         nThen(function (waitFor) {
             SFrameChannel.create(window.parent, waitFor(function (sfc) { ctx.sframeChan = sfc; }), true);
             // CpNfInner.start() should be here....