Move 'methods' object outside of navigate

[dsidirop]

The implementation of navigate on the time of this writing looks like so:

navigate: function (method) {
            var methods = {
                  // ...
            },

Hence every time we call navigate to generate urls:

$.navigate('url', ...)

The 'methods' object is generated again and again. This introduces an unnecessary overhead.

The solution: Refactor the implementation to move the 'methods' object outside of 'navigate()'.