JSF.TS improved viewstate processing

new_viewstate.ts

 /**
     * process the viewState update, update the affected
     * forms with their respective new viewstate values
     * and store them for later processing
     */
    processViewState(node: XMLQuery): boolean {
        if( this.isViewStateNode(node)) {
            let viewStateValue = node.textContent();
            this.internalContext.assign(APPLIED_VST, node.id.value).value = new ViewState(node.id.value, viewStateValue);
            return true;
        }
        return false;
    }

    /**
     * post update step, fix all the viewstates in the affected viewroots
     * according to the spec
     */
    fixViewStates() {
        Stream.ofAssoc<ViewState>(this.internalContext.getIf(APPLIED_VST).orElse({}).value)
            .each((item: Array<any>) => {
                let key = item[0];
                let value: ViewState = item[1];
                let nameSpace = DQ.byId(value.nameSpace).orElse(document.body);
                //we search all child elements
                let affectedForms = nameSpace.byTagName(TAG_FORM, true);

                this.appendViewStateToForms(affectedForms, value.value);
            });
    }