Issues in tests
Run this:
cd $(nimble path nimx)/test && ./main
And try to click on tabs(Welcome, Controls, Image, Animation) not in order.
I cannot activate tab the first time.

Also font on the "segmented control" is very blurred.
If I press buttons on the "segmented control" I get text outside of text field.

I use Ubuntu 14.04 x64 with devel branch of nim.
