Enabled all client errors to be displayed

loopback/server/middleware.development.json

@@ -3,7 +3,7 @@
     "strong-error-handler": {
       "params": {
         "debug": true,
-        "log": false
+        "log": true
       }
     }
   }

loopback/server/middleware/error-handler.js

@@ -24,7 +24,13 @@ module.exports = function() {
         if (err.sqlState == '45000')
             return next(new UserError(req.__(err.sqlMessage)));
 
-        if (!err.statusCode || err.statusCode >= 500)
+        // Logs error to console
+
+        let env = process.env.NODE_ENV;
+        let useCustomLogging = env && env != 'development' &&
+            (!err.statusCode || err.statusCode >= 500);
+
+        if (useCustomLogging)
             logToConsole(req, err);
 
         next(err);