Add schedule processing capabilities, and cleanups.

Fixes a few config issues and warnings
Removes double-import of GDC
Adds mpxj dependency for scheduling

documents/procedures/administration/document_management.rst

@@ -22,7 +22,7 @@ Systems
 Documents and records are managed in the following systems.
 
 .. datatemplate:yaml:: 
-    :source: /_data/systems.yaml
+    :source: /_data/it-systems.yaml
 
     {{ make_list_table_from_mappings(
         [('Name', 'name'), ('Use case(s)', 'use-cases'), ('Location', 'location')],

documents/procedures/administration/writers_guide.rst

@@ -1,6 +1,6 @@
 Writer's Guide
 --------------
 
-See :ref:`meyerProcedureWriterGuide1993`
+See :cite:p:`meyerProcedureWritersGuide1993`
 
-See :ref:`wieringaProcedureWritingDomains1991`.
+See :cite:p:`wieringaProcedureWritingDomains1991`.