Fixes #17: Pre-select the 'standard' installation profile.

sites/default/settings.pantheon.php

@@ -37,6 +37,18 @@ if (isset($_ENV['PANTHEON_ENVIRONMENT'])) {
   $GLOBALS['install_state']['settings_verified'] = TRUE;
 }
 
+/**
+ * Pre-select the 'standard' installation profile.  Drupal complains if we
+ * do not do this, and operational problems result.
+ *
+ * https://github.com/pantheon-systems/drops-8/issues/17
+ */
+if (isset($_ENV['PANTHEON_ENVIRONMENT'])) {
+  // Pre-select the standard profile
+  $GLOBALS['install_state']['profile_info']['distribution']['name'] = 'standard';
+  $GLOBALS['install_state']['parameters']['profile'] = 'standard';
+}
+
 /**
  * Allow Drupal 8 to Cleanly Redirect to Install.php For New Sites.
  *