#1693: javascript method to register user_data load listeners

The $.getJSON('/account/user_data') on application.js must callback to a list of methods, allowing theme specific actions on the user_data load.

Possible solution:

The theme script uses registerUserDataLoadListener(myFubction) and the $.getJSON('/account/user_data') callback send the json data to all registered functions.

registerUserDataLoadListener register the functions in an array.

-- AurelioAHeckert - 17 Sep 2010