move documentation sources to docs/source

* docs/source/conf.py
  - add toplevel directory to Python search path to allow building of
    documentation using system sphinx installation

docs/source/sourcecode.rst

@@ -0,0 +1,95 @@
+Source documentation
+====================
+
+The sections below contain mostly autogenerated documentation of the source
+code of the Debian Member Portfolio Service.
+
+Controllers
+-----------
+
+.. automodule:: ddportfolioservice.controllers
+   :members:
+
+ddportfolio controller
+~~~~~~~~~~~~~~~~~~~~~~
+
+.. automodule:: ddportfolioservice.controllers.ddportfolio
+   :members:
+
+error controller
+~~~~~~~~~~~~~~~~
+
+.. automodule:: ddportfolioservice.controllers.error
+   :members:
+
+showformscripts controller
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. automodule:: ddportfolioservice.controllers.showformscripts
+   :members:
+
+template controller
+~~~~~~~~~~~~~~~~~~~
+
+.. automodule:: ddportfolioservice.controllers.template
+   :members:
+
+Library code
+------------
+
+.. automodule:: ddportfolioservice.lib
+   :members:
+
+app_globals
+~~~~~~~~~~~
+
+.. automodule:: ddportfolioservice.lib.app_globals
+   :members:
+
+base
+~~~~
+
+.. automodule:: ddportfolioservice.lib.base
+   :members:
+
+helpers
+~~~~~~~
+
+.. automodule:: ddportfolioservice.lib.helpers
+   :members:
+
+Model
+-----
+
+.. automodule:: ddportfolioservice.model
+   :members:
+
+dddatabuilder
+~~~~~~~~~~~~~
+
+.. automodule:: ddportfolioservice.model.dddatabuilder
+   :members:
+
+form
+~~~~
+
+.. automodule:: ddportfolioservice.model.form
+   :members:
+
+keyfinder
+~~~~~~~~~
+
+.. automodule:: ddportfolioservice.model.keyfinder
+   :members:
+
+keyringanalyzer
+~~~~~~~~~~~~~~~
+
+.. automodule:: ddportfolioservice.model.keyringanalyzer
+   :members:
+
+urlbuilder
+~~~~~~~~~~
+
+.. automodule:: ddportfolioservice.model.urlbuilder
+   :members: