Workaround for Jedi issue.
Using ABCMeta for Completer class.
Added contrib.completers. A collection of reusable completers.
Using WordCompleter in the autocompletion example.
(work in progress) Experimental 'regular languages' code.

-

fixed test.

-

Work in progres...

fixes.

cleanup

Python 2.6 compatibility.

Work in progress...

cleanup
-

-