[IMP] web: web modules return readable logs and phantomjs logs

boot.js log:

* ``Missing dependencies``:
  These modules do not appear in the page. It is possible that the JavaScript
  file is not in the page or that the module name is wrong
* ``Failed modules``:
  A javascript error is detected
* ``Rejected modules``:
  The module returns a rejected deferred. It (and its dependent modules) is not
  loaded.
* ``Rejected linked modules``:
  Modules who depend on a rejected module
* ``Non loaded modules``:
  Modules who depend on a missing or a failed module