Added a spin-delay at start of pndnotifyd so in theory it will wait until a user...

Added a spin-delay at start of pndnotifyd so in theory it will wait until a user logs in; this possibly could solve the problem where sometimes pndnotifyd doesn't emit .desktops
extended evmapperd to not spam-execute script (configurable minimum separation time between runs)
extended evmapperd to pass the hold-time of key to script as first argument (argv[1], since argv[0] is job name)