Noborder: explicitly check bw change.

I was relying on the assumption that both w and h would change alongside bw and so
applysizehints would return true. But the fact is that w and h could be truncated if out
of the screen limits and so a change due to bw adjustment would be ignored.
Merge branch 'noborder'
Devel utilities.
Merge branch 'devutils'

Conflicts:
	dwm.c