Intermittent stall on launch

[smashwilson]

When Atom launches with experimental watchers enabled, occasionally the entire process stalls and Atom stops responding to mouse or keyboard input. There doesn't appear to be any watcher code on the stack when it's sampled with Activity Monitor.

I'm wondering if this is a bug in the NativeWatcherRegistry.

Observed by both @as-cii and @maxbrunsfeld.

[robertrossmann]

From my anecdotal observations it would seem that after setting the env vars described in #123 the stalls no longer occur upon launch. I set the log destinations to /dev/null for the main and worker processes/threads.

Atom-Beta 1.29-beta.2