remove |app , to fix broken image path.

When using item list component , origin code to show image in items list is 
~~~~~
 <img src="{{ item.images.0.path|app}}" class="img-responsive">
~~~~~
and result is 
![capture-before](https://cloud.githubusercontent.com/assets/2394224/3486292/1f185458-042d-11e4-8e28-0fce0f2a4524.PNG)

When i change markup to 
~~~~~
 <img src="{{ item.images.0.path}}" class="img-responsive">
~~~~~
![capture-after](https://cloud.githubusercontent.com/assets/2394224/3486297/40b56510-042d-11e4-89dd-4c0778dad4f5.PNG)

i thing the second way is right..