Complete admin settings for non-default environments

Patch works best, if #1915418: Unable to index a node bundle in a dedicated index / environment gets applied as well.

#2: 1915614_config_actions_indexing_all_writable_envs.patch queued for re-testing.

+++ b/apachesolr.admin.incundefined
@@ -367,8 +367,7 @@ function apachesolr_settings(array $form, array &$form_state) {
-         array('query' => array('destination' => current_path()))

Removed?

Yes, it conflicted with with the new per env redirects in apachesolr_index_action_form_cron_submit,
apachesolr_index_action_form_remaining_confirm_submit, apachesolr_index_action_form_reset_confirm_submit,
apachesolr_index_action_form_delete_confirm_submit

+++ b/apachesolr.index.incundefined
@@ -157,6 +157,8 @@ function apachesolr_index_status($env_id) {
+      ->orderBy('aie.changed', 'ASC')
+      ->orderBy('aie.entity_id', 'ASC')

is this necessary?

It's already documented some lines above but was missing in the statement:

    // Find the next batch of entities to index for this entity type.  Note that
    // for ordering we're grabbing the oldest first and then ordering by ID so
    // that we get a definitive order.
    $query = db_select($table, 'aie')
      ->condition('aie.bundle', $bundles)
      ->condition('aie.status', 1)
      ->condition(db_or()
        ->condition('aie.changed', $last_changed, '>')
        ->condition(db_and()
          ->condition('aie.changed', $last_changed, '<=')
          ->condition('aie.entity_id', $last_entity_id, '>')))
      ->orderBy('aie.changed', 'ASC')
      ->orderBy('aie.entity_id', 'ASC')
      ->addTag('apachesolr_index_' . $entity_type);

see #1828014: Mass re-indexation can miss (a lot of) content

+++ b/apachesolr.moduleundefined
@@ -898,67 +898,75 @@ function apachesolr_get_last_index_updated($env_id) {
+    module_load_include('inc', 'apachesolr', 'apachesolr.index');

module_load in a foreach? Why not leave it at the top?

You're right. New patch attached.