disable window Close (workaround for #1)
fix initial Play media key press

Without this fix, initial music start had to be made via "play" button
in the browser. Now it can be started by Play media key too.

Thank @kaero for this bug fix.
proper fix for initial Play media key press

use Mu.events.trigger instead of weird play button selector
track playing/nonplaying state via JS=>ObjC bridge
use new playing/non-playing tracking for notifications
show playing state on the status icon (closes #9)

thanks @kaero for initial implementation (including icon!)
more comments, less logging
Menu items for playback control, closes #10
track info in (disabled) status menu item
app screenshot in README (closes #12)
add keyboard photo to screenshot
Pause instead of Play
dmg download for 10.7 and 10.8
initially *empty* track info menu item
bring WebView scale to Safari default scale, fixes #14
undo previous commit (see #14 comments)
increase default WebView font (fixes #14)
*keyboard* photo attribution
track JS injection by window attr (fixes #18)

Using Objective C property to track JavaScript playing handler was
wrong. Page reload destroyed all injected JavaScript, but the property
was still there. Switched to window.MAC_APP_HANDLER_INSTALLED instead.
set app display name (fixes #13)