Remove console.logs

Using console in production is generally undesirable due to
performance loss and security concerns. Errors were changed
to console.error and console.logs were removed.

browser/main/lib/ipcClient.js

@@ -14,14 +14,13 @@ nodeIpc.connectTo(
   path.join(app.getPath('userData'), 'boostnote.service'),
   function () {
     nodeIpc.of.node.on('error', function (err) {
-      console.log(err)
+      console.error(err)
     })
     nodeIpc.of.node.on('connect', function () {
-      console.log('Connected successfully')
       ipcRenderer.send('config-renew', {config: ConfigManager.get()})
     })
     nodeIpc.of.node.on('disconnect', function () {
-      console.log('disconnected')
+      return
     })
   }
 )