Issue #2358075 by Heis Spiter : Added include switch for drush above v. 5 in order to ba able to locate pm_release_recommended().
Added _nagios_get_drupal_status_info() in order to get started with new check-drupal command.
Updated README.
Updated README.
Updated README.
Added function _nagios_parse_drupal_status_info().
Continued on _nagios_parse_drupal_status_info(), added ingnore option.
Added ingnore option.
* Moved functionality from issue #2358075 to drush_COMMAND_init()
* Minor documentation stuff
Updated README.
Changed drush_nagios_init() to nagios_drush_init(), changed callback for check-drupal-requirements.
Used switch and added check-drupal in _nagios_print_message().
Added exit status handling for check-drupal-requirements