Ansible12 fixes pr 1.x (#769)

* Updating 'default()' filter paths in _init as an initial test.

* Explicitly casting integers as strings for path creation.

* Over refactored the variable setting!

* Fixing Drupal 7 include in _init.

* Another string truthy bug for Ansible 12.

Author: gregharvey

roles/database_apply/database_apply-drupal8/tasks/main.yml

@@ -128,7 +128,7 @@
     loop_var: site
   when:
     - previous_build_number > 0
-    - site.config_import_command
+    - site.config_import_command | length > 0
   register: _drush_output
 
 - name: Show drush output.