main: reduce exit sleep from 3s to 1s
main: reduce exit sleep from 3s to 1s

We haven't refactored this bit to properly shutdown all http servers
yet. For now, reduce the sleep from 3 to 1 seconds to reduce the
everyday pain of developers (mostly me) watching the screen for three
seconds dozens of times a day.

Updates #630.

lonelycode/tyk,lonelycode/tyk,lonelycode/tyk