Adrien Di Mascio <Adrien.DiMascio@logilab.fr> [Mon, 12 May 2014 12:37:19 +0200] rev 9740
[shell] provide autocompletion for rql queries in cubicweb-ctl shell (closes #3560541)
Use the ``rql.suggestions`` component to complete user's input
- readline calls the ``complete`` method with user's input,
- the ``complete`` method asks for each known completers if
it can suggest completions for user's input.