[Ml-yokadi] Yokadi airport code sprint

[Aurélien Gâteau]

Sébastien Renard wrote:
> Hello,
> 
> I had few hours to kill in airport during my way back from Akademy to home. 
> So... here's some new stuff for the next release:
> - bugs keywords are now prefixed by "_" to distinguish them from user keywords
> - keywords are now displayed in t_list (VIP wish)
> - you can define the default database path with YOKADI_DB shell env. (VIP wish 
> again).

Sounds good! Don't forget the update script for the bug keywords :)

Aurélien