[Ml-yokadi] feature request

[Aurélien Gâteau]

Sébastien Renard wrote:
>> Aurélien (who just p_remove'd a bunch of old projects)
> 
> You also can use t_purge which purge old done tasks.
> 
> This is maybe the solution: also purge unused keyword when a task is marked 
> done or removed.
> This means we don't have keyword anymore when browsing history with t_list -d 
> or t_list -a. But this seems a good compromise.

It would be annoying in some use-cases: for example I flag all bugs
which require i18n changes with @i18n, so that I know I should fix those
before string freeze. If I get all of them done, I do not want my
keyword to be deleted.

Aurélien