Don't move windows to (0, 0) when setting frame.
Don't move windows to (0, 0) when setting frame.

It seems to be unnecessary and causes some obnoxious flickering on multi-screen
setups.

Closes issue #8

olsonpm/Amethyst,hooplaaa/Amethyst,ianyh/Amethyst,ianyh/Amethyst,ianyh/Amethyst,olsonpm/Amethyst,ianyh/Amethyst,cevaris/Amethyst,hooplaaa/Amethyst,egabancho/Amethyst,cevaris/Amethyst,egabancho/Amethyst,ianyh/Amethyst,m4rw3r/Amethyst,m4rw3r/Amethyst