[Qt-creator] Code completion feature request

[Alexandre Beber]

Hi! It's nothing urgent, only small features to make code completion
more efficient (in my opinion at least)

1- Disable case sensitive of the first letter. If I type "qs" then
Ctrl+Space, QString does not appear on the list. If I type "Qs" it
does.. So, if the other letters don't need to be in the correct case I
think the first one don't need either. On Visual Studio I can type
"qstring" and hit Ctrl+Space just to correct the case..
2- Resize the code completion box. It fits the width of the longest
item displayed, but if you scroll down and there is a wider item, it
gets trimmed to the size of the box.

That's it...

Thanks for the great IDE and for hearing us!

Alexandre