Attempt to fix keyboard input sometimes not working until window is unfocused/refocused. Happened to me once (And only once), when I was experimenting with disabling read input in GS thread. There are a number of potential causes of this, and I've added workarounds for several of them.
Slightly updated code to determine when to update pad state - added both a timer, so read state less when fast forwarding, and Multitap support (to that particular chunk of code).
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@838 96395faa-99c1-11dd-bbfe-3dabce05a288
mattmenke