Sync with commit 7449d0a7 of git://github.com/andrewgho/movewin.git: Use private API to pull window ID from AXUIElement, allowing -i to move window by window ID; Fix inaccurate comment; Remove unused second argument to AXWindowFromCGWindow()
Expose window ID as MoveWin::Window.id
Correctly load development libraries when in development repository; add command line argument handling and ability to show and use window IDs
Bump version from 1.3 to 1.4 (for window ID handling)