Added method reset

[jonny-no1]

Pull request to close issue #26.

Based on: http://stackoverflow.com/a/26848549/2106834.

reset is a reserved word hence why I went for _reset.

[guidolx]

A minor fix to the method - imho you could add a check like this - had some weird behaviour on a form where all the steps are enabled (user can navigate back and forth )

if(state.currentIndex !== 0){
    goToStep(wizard, options, state, 0);
}

[DevNamedZed]

We have it so they cannot go back after the last page. Added a flag to ignore the stepChanging flag when resetting

$.fn.steps.reset = function () {
    var wizard = this,
        options = getOptions(this),
        state = getState(this);

    
    if (state.currentIndex !== 0) {
        state.isResetting = true;
        goToStep(wizard, options, state, 0);
        state.isResetting = false;
    }

    for (i = 1; i < state.stepCount; i++) {
        var stepAnchor = getStepAnchor(wizard, i);
        stepAnchor.parent().removeClass("done")._enableAria(false);
    }
};

if (state.isResetting || wizard.triggerHandler("stepChanging", [state.currentIndex, index]))
    {

[jonny-no1]

This project seems to be abandoned.