F2.stringify is being called on all messages

[holsted]

When calling F2.Events.emit(), the params are being stringified regardless if the apps are secure or not. This introduces a performance issue in IE8 with large objects being passed through. The problematic line appears to be line 238 of rpc.js.

[ilinkuo]

I think this is a different concern, but shares the same solution as #46 -- use a whitelist to filter the AppConfig before serializing -- because most of what's in the AppConfig doesn't need to go over the wire.

[markhealey]

Linking to line 238. @FajitaNachos do you have a test case (or jsfiddle) showing this?