OS X: Prevent white flash on window open

We got the window to run less JS but now it’s shown by the main process
too soon! This fixes that with a setTimeout.

Perhaps when this issue is fixed
(electron/electron#861) we can remove the timeout.

main/ipc.js

@@ -18,9 +18,12 @@ var powerSaveBlockID = 0
 
 function init () {
   ipcMain.on('ipcReady', function (e) {
-    console.timeEnd('init')
     app.ipcReady = true
     app.emit('ipcReady')
+    setTimeout(function () {
+      windows.main.show()
+      console.timeEnd('init')
+    }, 50)
   })
 
   ipcMain.on('showOpenTorrentFile', menu.showOpenTorrentFile)

main/windows.js

@@ -71,10 +71,6 @@ function createMainWindow () {
     menu.onToggleFullScreen()
   })
 
-  win.webContents.on('did-finish-load', function () {
-    win.show()
-  })
-
   win.on('blur', menu.onWindowHide)
   win.on('focus', menu.onWindowShow)