Changed rpxAccount login_form due to end-of-life for Janrain IFRAME/embedded widget
Revert "Changed rpxAccount login_form due to end-of-life for Janrain IFRAME/embedded widget"

This reverts commit c4a68e9e5a59ea6542e4087576c285d99dc92858.
Modified RPXAccount to be backward compatible with older Web2py versions
Merge pull request #334 from PeterQ2/master

Changed RPXAccount login_form due to end-of-life for Janrain legacy widget