Remove MIT Scheme configuration.

Slime MIT Scheme configuration is not mature

Signed-off-by: Zlatozar Zhelyazkov <zlatozar@gmail.com>
Add ANSI Common Lisp specification

- improve Python configuration

Signed-off-by: Zlatozar Zhelyazkov <zlatozar@gmail.com>
Add org-mode configuration, use 'bind-key' everywhere

Signed-off-by: Zlatozar Zhelyazkov <zlatozar@gmail.com>