Fix accept header issues

Setup supportedTypes.
Add hack to rewrite application/vnd.api+json to application/json
(hopefully get loopback support and wont need this)

Author: digitalsadhu

lib/headers.js

@@ -1,12 +1,29 @@
 'use strict';
-
-var bodyParser = require('body-parser');
+var is = require('type-is');
 
 module.exports = function (app, options) {
 
-  //registered at the beginning of the routes phase due to usage of
-  //express app.use instead of app.middleware.
-  //We need to do this as bodyParser doesn't support
-  //JSON APIs application/vnd.api+json format by default
-  app.use(bodyParser.json({ type: 'application/vnd.api+json' }));
+  app.remotes().before('**', function (ctx, next) {
+    if (ctx.req.accepts('application/vnd.api+json')) {
+      ctx.req.headers.accept = 'application/json';
+    }
+    next();
+  });
+
+  app.remotes().options.rest = {
+    //turn off strong remotings error handler so we can handle ourselves in error.js
+    handleErrors: false,
+
+    //extend support for application/vnd.api+json
+    supportedTypes: ['json', 'application/javascript', 'text/javascript', 'application/vnd.api+json']
+  };
+
+  //extend rest body parser to also parse application/vnd.api+json
+  app.remotes().options.json = {
+    strict: false,
+    type: function (req) {
+      //if Content-Type is any of the following, then parse otherwise don't
+      return !!is(req, ['json', 'application/json', 'application/vnd.api+json']);
+    }
+  };
 };

package.json

@@ -28,7 +28,9 @@
     "body-parser": "^1.14.1",
     "debug": "^2.2.0",
     "inflection": "^1.7.2",
-    "lodash": "^3.10.1"
+    "lodash": "^3.10.1",
+    "loopback": "^2.22.2",
+    "type-is": "^1.6.9"
   },
   "devDependencies": {
     "babel-eslint": "^4.1.3",