Resolved incompatibilities with drush 5 due to drush_invoke_process_args()
in ExtensionInfo.php line 194.

drush_invoke_process_args() was deprecated and it's not present in drush 5.

drush_invoke_process_args() was replaced with drush_invoke_process()
Merge branch '7.x-1.x' of https://github.com/LateAtGit/drupal-drux into 7.x-1.x