Test for Helper\RealPath().
Throw exception if the entity type is invalid.
User entity does not have bundle key.
Fix #5: Test for \Drupal\at_base\Helper\RenderContent.
#5: Could not enable atest_theming.
#7: More docs for helper classes.
#8: Cache warming: Support views.
#8: WarmerConfig does not know event name.
#8: Test for views-cache warming will go to at_theming module.
Do not flush views cache if the module is not enabled.
Merge branch '7.x-1.x' of git.drupal.org:project/at_base into github

* '7.x-1.x' of git.drupal.org:project/at_base:
  Do not flush views cache if the module is not enabled.
  #8: Test for views-cache warming will go to at_theming module.
  #8: WarmerConfig does not know event name.
  #8: Cache warming: Support views.
  #7: More docs for helper classes.
  #5: Could not enable atest_theming.
  Fix #5: Test for \Drupal\at_base\Helper\RenderContent.
  User entity does not have bundle key.
  Throw exception if the entity type is invalid.
  Test for Helper\RealPath().