Merge pull request particle-iot#29 from AntonPuko/flowClean

add injected controller props to base Controller class

Author: jlkalberer

src/lib/controllers/Controller.js

@@ -1,8 +1,14 @@
 // @flow
 
+import type { $Request, $Response } from 'express';
+import type { User } from '../../types';
 import type { HttpResult } from './types';
 
 export default class Controller {
+  user: User;
+  request: $Request;
+  response: $Response;
+
   bad = (message: string): HttpResult<*> => ({
     data: { message },
     status: 400,