* move documentation-source from /docs/source to /docs/ and build in
/docs/_build instead of /docs/build
* convert README to rst and remove information also present in
documentation and refer to it
* regenerate conf.py/Makefile with most recent Sphinx-version
* add development.rst with information for contributors
This adds support for a more expressive (albeit more verbose) IdentMap
structure. It makes it easier to annotate the structure with additional
data (such as names to associate with the IDs), to assist with
maintaining the IdentMap.