fix(watch): Ensure that watch tasks are throttled to run one at a time per watcher.
fix(watch): Ensure that watch tasks are throttled to run one at a time per watcher.

driftyco/ionic-app-scripts,michaelgeorgeattard/ionic-app-scripts,driftyco/ionic-app-scripts,driftyco/ionic-app-scripts,rolandjitsu/ionic-app-scripts,michaelgeorgeattard/ionic-app-scripts,rolandjitsu/ionic-app-scripts,michaelgeorgeattard/ionic-app-scripts,rolandjitsu/ionic-app-scripts