[rekonq] Urlbar improvements

[megabigbug]

> Sure you don't need? I have 4 pcs at home called (without fantasy)
> "server", "mediacenter" , "blackbox" (my notebook) and "wifebox" :). And a
> router called "router".
> Typing one of these names rekonq searched google for them as first result,
> while now it rightly loads them.

just type http://server the first time
the second time it will be in the history, and inserted as first item of the 
list.
we can't interogate a dns each time the user press a key, the best we can do 
is interogate when he stops typing.

> And I think the same is valid for words like "localhost" and so on.
> Basically this is why the isHttp() check is unuseful.
> 
> Try to guess user ideas is unsane. 

unsane ?

if we don't do that, all the concept of one bar (instead of two bar: history 
and search) is unsane.

> And someone will always find one case
> where he prefers one solution over the others proposed.
> I strongly suggest to just show engines results as they are implemented:

I disagree with that.

> > The only interesting thing of KUriFilter is protocol detection: for
> > instance gg: kde: http: etc.

> Again, no. Please, read again my previous mail. Without it more than one
> half of the url typed will fail to load.

I agree it is useful after the user press enter, but only the protocol 
detection is interesting when he is typing.