clear
Deletes all records on a connection.
    function()
  
  Deletes all records on a connection.
Returns
 {Promise}: 
Returns a promise that resolves when all data is cleared.
Use
Implement clear to remove all data in a connection.
connect.behavior("my-behavior", function(baseConnection){
    return {
        clear: function(){
            // delete tabs, or clear localStorage, etc
        }
    }
})