use (LMP)loopback middleware phases

bump loopback-component-passport which uses LMP
move custom middlewares to middlewares directory

server/middlewares/error-handlers.js

@@ -0,0 +1,43 @@
+import errorHanlder from 'errorhandler';
+import accepts from 'accepts';
+
+export default function prodErrorHandler() {
+  if (process.env.NODE_ENV === 'development') {
+    return errorHanlder({ log: true });
+  }
+  // error handling in production.
+  // disabling eslint due to express parity rules for error handlers
+  return function(err, req, res, next) { // eslint-disable-line
+    // respect err.status
+    if (err.status) {
+      res.statusCode = err.status;
+    }
+
+    // default status code to 500
+    if (res.statusCode < 400) {
+      res.statusCode = 500;
+    }
+
+    // parse res type
+    var accept = accepts(req);
+    var type = accept.type('html', 'json', 'text');
+
+    var message = 'opps! Something went wrong. Please try again later';
+    if (type === 'html') {
+      req.flash('errors', {
+        msg: message
+      });
+      return res.redirect('/');
+      // json
+    } else if (type === 'json') {
+      res.setHeader('Content-Type', 'application/json');
+      return res.send({
+        message: message
+      });
+      // plain text
+    } else {
+      res.setHeader('Content-Type', 'text/plain');
+      return res.send(message);
+    }
+  };
+}