LEDGE-253: server side identitity store idenpendent from HTTP session.
Revert "LEDGE-253: server side identitity store idenpendent from HTTP session."

This reverts commit 01bbc127e67ce73771419175a7a2bea81c7ced0a.
Revert "LEDGE-253: load json2.js for IE8 compatibility"

This reverts commit 97665d7a37c67d2d74ce108880861819a8a42958.