Rl

----------------

- Force a static build if the RL_BUILD_STATIC_READLINE environment
variable is set.
[stefan]

- Include readline 6.2 patches in static builds.
[stefan]

- Suppress compiler warnings on more platforms.
[stefan]

------------------

- Fix a C compiler issue under Python 3 on Linux.
[stefan]

----------------

- Drop support for cmd.Cmd. You now must derive your command
interpreters from `kmd.Kmd`_ to use rl features.
[stefan]

- Accept None as argument to file operations under Python 3.
[stefan]

- Switch to pretty Sphinx-based docs.
[stefan]

-----------------

- Tilde-expand filenames in ``read_history_file`` and ``write_history_file``.
[stefan]

-------------------

- Silence a second C compiler warning in function ``get_y_or_n``.
[stefan]

-------------------

- Silence a C compiler warning in function ``get_y_or_n``.
[stefan]