Fails to capture opened Xcode windows

[ianyh]

It looks like when you open a project/workspace in Xcode it spawns a window that isn't manageable, and then modifies it to actually open the project/workspace at which point it becomes manageable.

[ianyh]

I think only way to actually do this is to poll for new windows. Can probably be intelligent about it (tighten up polling interval when windows are created and exponentially backoff from there). This fixes a couple other problems as well. Should probably finish #27 first.

[ianyh]

This is half fixed by fixing #27, that is, once you do anything that causes a screen reflow it tiles the window. Should maybe just have a base offset from window creation of a couple seconds to force a reflow to deal with cases like this.

[ianyh]

This is no longer the case as of Xcode 5.