Update ModulesFetcher.php

Small tweak.
Update .travis.yml

Fix mail sending.
Update .travis.yml

Revert drush install command.
Update Importer.php

Hook menu is called when cache is not builded. Do not need a cached version.
Update String_Engine.php

Use helper.real_path service.
Create Callback_Engine.php
Update RouteToMenu.php

Page callback does not support assets attachment yet.
+ Small comments.
Fix broken test case.
Remove todo item.
Fix broken test case.
+ License file.
The view::pre_execute() is not called if template not found.
Small clean up for Drupal\at_base\Twig\Filters\Views.
Merge remote-tracking branch 'upstream/7.x-2.x' into 7.x-2.x