perf(outbox): Only trigger when send draft tasks are present

internal_packages/feedback/lib/feedback-button.cjsx

@@ -24,6 +24,6 @@ class FeedbackButton extends React.Component
 
   _onSendFeedback: =>
     return if NylasEnv.inSpecMode()
-    require('electron').shell.openExternal('http://support.nylas.com/')
+    require('electron').shell.openExternal('https://nylas.zendesk.com/hc/en-us/sections/203638587-N1')
 
 module.exports = FeedbackButton

src/flux/action-bridge.coffee

@@ -114,8 +114,8 @@ class ActionBridge
     # Electron won't actually send the message. To work around this, we wait an
     # arbitrary amount of time before closing the window after the last IPC event
     # was sent. https://github.com/atom/electron/issues/4366
-    if @ipcLastSendTime and Date.now() - @ipcLastSendTime < 100
-      setTimeout(readyToUnload, 100)
+    if @ipcLastSendTime and Date.now() - @ipcLastSendTime < 50
+      setTimeout(readyToUnload, 50)
       return false
     return true
 

src/flux/modules/reflux-coffee.coffee

@@ -151,7 +151,7 @@ module.exports =
     setupEmitter: ->
       return if @_emitter
       @_emitter ?= new EventEmitter()
-      @_emitter.setMaxListeners(20)
+      @_emitter.setMaxListeners(50)
 
     listen: (callback, bindContext) ->
       if not callback

src/flux/stores/outbox-store.es6

@@ -7,14 +7,19 @@ class OutboxStore extends NylasStore {
 
   constructor() {
     super();
+    this._tasks = [];
     this.listenTo(TaskQueueStatusStore, this._populate);
     this._populate();
   }
 
   _populate() {
-    this._tasks = TaskQueueStatusStore.queue().filter((task)=> {
+    const nextTasks = TaskQueueStatusStore.queue().filter((task)=> {
       return task instanceof SendDraftTask;
     });
+    if ((this._tasks.length === 0) && (nextTasks.length === 0)) {
+      return;
+    }
+    this._tasks = nextTasks;
     this.trigger();
   }