Merge pull request #69 from car-da/master

add submodules
diff --git a/salt/master/env.sls b/salt/master/env.sls
index 36a927e..5d4b8ce 100644
--- a/salt/master/env.sls
+++ b/salt/master/env.sls
@@ -206,6 +206,7 @@
   - branch: {{ formula.branch|default(formula.revision) }}
   {%- endif %}
   {% endif %}
+  - submodules: {{ formula.submodules|default(False) }}
   - force_reset: {{ formula.force_reset|default(False) }}
   - require:
     - file: salt_env_{{ environment_name }}_dirs