Fix roleTest for D8
Improve error reporting when running sql-query on non-bootstrappable sites.
Remove file_append_hook (committed on accident)
Adjust queue commandfile for D8
Merge branch 'master' of git.drupal.org:project/drush
Tighten conditions under which we write a sites.php file during site-install. Trying to avoid permission errors for most folks in a locked down environment.
Slight improvements to code comments in site-install.
Tone down error message.
Issue #1846058 by alexpott: Fixed Invalid arguments on DrupalKernel __construct().
#1826648 by TravisCarden: Fix small typo
Issue #1839924 by mvc: --no-core ignored for Drupal 6
Quiet a warning
Issue #1839924 by greg.1.anderson: Update previous fix to work on D8 again (check for package Core before other tests)
Issue #1845224 by Les Lim: Make "structure-tables-list" and "skip-tables-list" options available to `drush sql-dump`
Issue #1834962 by greg.1.anderson: Drush role changes for Drupal 8
Issue #1802344 by greg.1.anderson, jonhattan: Fixed Drush up notifies of -dev version update but then installs older stable release.
Remove leftover .orig file
Follow-up to issue #1802344 to add project date to pm-info
Merge branch 'master' of git.drupal.org:project/drush
Issue #1851970 by jhedstrom: Fixed Using the 'revision' shortcut doesn't work if a branch or other download parameters are specified.

Signed-off-by: Jonathan Hedstrom <jhedstrom@gmail.com>