Encourage the practice of using the Drupal issue node id as patch array key.
Fixed bug where if no-backup option was present, files were never deleted from projects.
drush wrapper script fixed to respect the $DRUSH_PHP variable
Fixed drush_core_updatedb() calls drush cache-clear which is deprecated for D8.
Merge pull request #853 from dmitrybezer/master

drush wrapper script fixed to respect the $DRUSH_PHP variable
Remove array('all'), it's needless for cache-rebuild
Ensure path returned by drush_server_home() does not have trailing slashes.
Restore comment.
Merge pull request #858 from alexbarrett/master

Ensure path returned by drush_server_home() does not have trailing slashes
Updated test-run documentation when running with apache user
Merge pull request #861 from DavidHernandez/test-run-doc

Updated test-run documentation when running with apache user
Wrap url inside drush_url so it can be switched depending on the Drupal version
Merge pull request #862 from attiks/PR856

Wrap url inside drush_url so it can be switched depending on the Drupal version
Merge pull request #855 from helmo/updb-cc-rebuild

Fixed drush_core_updatedb() calls drush cache-clear which is deprecated ...
Fix #598. Update cc menu for D8.
Update theme handling to D8.
Update cache-rebuild to align with latest code in core/rebuild.php. Also reduce bootstrap level to DRUSH_BOOTSTRAP_DRUPAL_ROOT.
Better checks for drupal bootstrap status. Fix Unish\pmDownloadCase::testSelect.
Revert "Better checks for drupal bootstrap status. Fix Unish\pmDownloadCase::testSelect."

This reverts commit d0ae2496f315058946edbfbb0e096024bc57f25c.

/me messed up with branches.
Follow-up to d809c2d58: There's no need to include the drupal environment engine.