This reverts commit 01c2e1d0.

This reverts commit 0e98e4c8.

Adding a $throw_drush_error parameter to provision_process(), to allow implementors to avoid crashing drush if a process fails. Also adding doc block.

Default the "error message" to NULL. Once the logs are rendered nicely, we don't need an extra "Process failed" message.

Herman van Rink authored Jul 13, 2018 and Herman van Rink committed Jul 13, 2018

Issue #2952366 by helmo, antoine.guichard, memtkmcc: Exclude /.well-known/acme-challenge from "HTTPS Required"

Andreas Karlsson authored Jul 12, 2018 and Herman van Rink committed Jul 12, 2018

Issue #2979542 by AndKar: Drupal 8 sub-sites gets error message: ”The provided host name is not valid for this server”

Kienan Stewart authored Jun 20, 2018 and Herman van Rink committed Jun 20, 2018

Issue #2979947 by kienan: Debian package for aegir3-hostmaster always asks for db_password during install

publish_path seems to be removed from the platform context and thus in a sites settings.php the platform settings code results in:
```# Additional platform wide configuration settings.
  if (is_readable('/sites/all/platform.settings.php')) {
    include_once('/sites/all/platform.settings.php');```

platform->root seems to yield the correct path to the platform

This reverts commit a151d3e6.