Create workflow action errors using the generic object error

namespace and not directly to the model.

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

mayan/apps/document_states/error_logs.py

@@ -0,0 +1,9 @@
+from __future__ import unicode_literals
+
+from django.utils.translation import ugettext_lazy as _
+
+from common.classes import ErrorLogNamespace
+
+error_log_state_actions = ErrorLogNamespace(
+    name='workflow_state_actions', label=_('Workflow state actions')
+)