Qtopia Quicker Finger Scrolling

[Treviño]

Finger scrolling the qtopia pages is not so easy, that's why I've tried to improve it a little.
The attached patch calculate on the speed of each mouse movement and uses this value to increase the scrolling speed.

So, while before only the dragging-space was considered, now the speed of the dragging movement has a role in the scrolling.

I've tried also to introduce a kind of auto scrolling if the dragging power was over some values, but I wasn't able to send automatically to the the QScrollBar scroll up/down events every few milliseconds.
That's why I've added some stub code that actually is used to scroll to the begin/end of the list if is the finger scrolling has enough acceleration and is made in a quite great space (the values I've hardcoded are usable in my tests, give them a try if you want to find better values!).

[Treviño]

Qtopia speedy finger scrolling [updated - removed some mistakes]

[roh]

BatchModify?: set HasPatchForReview? on 'keyword' contains 'patch'