<md-nav-list *ngFor="let directory of directories | async">
  <h3 md-subheader>{{directory.title}}</h3>  
  <a md-list-item *ngFor="let item of directory.items" (click)="call(item)" class="list">
     <h3 md-line>{{ item.title }}</h3>
     <h3 md-line>{{ item.subtitle }}</h3>
     <md-icon svgIcon="call"></md-icon>&nbsp;{{item.number}}
  </a>
</md-nav-list>

<md-nav-list *ngFor="let directory of directories | async">
  <h3 md-subheader>{{directory.title}}</h3>  
  <a md-list-item *ngFor="let item of directory.items" (click)="call(item)" class="list">
     <h3 md-line>{{ item.title }}</h3>
     <h3 md-line>{{ item.subtitle }}</h3>
     <md-icon svgIcon="call"></md-icon>&nbsp;{{item.number}}
  </a>
</md-nav-list>

<md-nav-list>
  <h3 md-subheader>Contact list</h3>  
  <a md-list-item *ngFor="let item of contacts | async" (click)="call(item)" class="list">
     <h3 md-line>{{ item.title }}</h3>
     <h3 md-line>{{ item.subtitle }}</h3>
     <md-icon svgIcon="call"></md-icon>&nbsp;{{item.number}}
  </a>
</md-nav-list>
Add contact list on Directory
Add contact list on Directory

First approach, we need to add the edit # and delete actions. Also the contact lists and the directory should be collapsible.

Close #45
