[Ml-yokadi] We should use Keyword in a smarter way

[Sébastien Renard]

Hello,

I've played some times with Yokadi competitors (yagtd, gtd, todo.sh, todo.py, 
tudu...) and read some papers about Allen GTD.

Well... Yokadi is, from far, one of the best tools ;-). But it lacks some 
usability.

Here's some of the good idea I find in other tools : 
- the @keyword notation => very easy to use.
- project are not mandatory. Yes, we have the default project, but it could be 
better.

So, here's some proposition to make yokadi more productive : 

- add the @keyword notation (equivalent to -k notation). Small patch provided 
(I will push it this night, currently I am in the RER :D).

- allow to add keyword to project, so I can declare a project @work or @dev or 
@buy. It save me to put the keyword on each tasks. Every tasks in the project 
inherit from project keyword. This will change the database model. No patch 
provivded for now, I am waiting for your thought and approval first.

a+
-- 
Sébastien