Activate stdin handler processing

[OvermindDL1]

The close handler when stdin is ended is not being called. Calling resume() on process.stdin will enable that handler so it will be called properly. It should 'probably' be called earlier in the program, perhaps at the very start, but if it spools up fast enough it should not matter, and this is the same place similar code in other projects places it as well.

Properly fixes #30

[LostKobrakai]

@OvermindDL1 it's now merged in the rollup repo

[OvermindDL1]

Ah, wouldn't have thought it goes there, weird. ^.^;

Does it work for the watcher from the main rollup repo @LostKobrakai ?