title: PrimeNG PanelMenu routerLink issue
body: <p>I am using PrimeNG (1.0.0-beta.5) PanelMenu with Angular RC 2.0.0-rc.1 version</p>
  
  <p>Below is the sample code of PrimeNG panel menu. When I click on <code>Project</code> or <code>Welcome</code> links, it refreshes my entire page and then loads the corresponding component.</p>
  
  <pre><code>&lt;p-panelMenu id="panelMenu"&gt;
      &lt;div&gt;
          &lt;div&gt;&lt;a data-icon="fa-file-o"&gt;&lt;span&gt;Report&lt;/span&gt;&lt;/a&gt;&lt;/div&gt;
          &lt;div&gt;
              &lt;ul&gt;
                  &lt;li&gt;&lt;a data-icon="fa-plus"&gt;&lt;span&gt;New&lt;/span&gt;&lt;/a&gt;
                      &lt;ul&gt;
                          &lt;li&gt;&lt;a [routerLink]="['Project']" (click)="mobileMenuActive = false"&gt;Project&lt;/a&gt;&lt;/li&gt;
                          &lt;li&gt;&lt;a [routerLink]="['Welcome']" (click)="mobileMenuActive = false"&gt;Welcome&lt;/a&gt;&lt;/li&gt;
                      &lt;/ul&gt;
                  &lt;/li&gt;
                  &lt;li&gt;&lt;a [routerLink]="['Project']"&gt;Project&lt;/a&gt;&lt;/li&gt;
                  &lt;li&gt;&lt;a&gt;&lt;span&gt;Quit&lt;/span&gt;&lt;/a&gt;&lt;/li&gt;
              &lt;/ul&gt;
          &lt;/div&gt;
      &lt;/div&gt;
  &lt;/p-panelMenu&gt;
  </code></pre>
  
  <p>Whenever I use nav element like below, it properly calls respective component without page refresh.</p>
  
  <pre><code>&lt;nav&gt;
              &lt;div class='container-fluid'&gt;
                  &lt;ul class='nav navbar-nav'&gt;
                      &lt;li&gt;&lt;a [routerLink]="['Welcome']"&gt;Home&lt;/a&gt;&lt;/li&gt;
                      &lt;li&gt;&lt;a [routerLink]="['Project']"&gt;Product List&lt;/a&gt;&lt;/li&gt;
                  &lt;/ul&gt;
              &lt;/div&gt;
  &lt;/nav&gt;
  </code></pre>
  
  <p>Any idea what I am missing in primeNG panel-menu implementation?</p>
  
  <p>Cheers
  Sanket</p>