update some packages and remove node_modules from repo

app/node_modules/load-json-file/index.js

@@ -1,21 +0,0 @@
-'use strict';
-var path = require('path');
-var fs = require('graceful-fs');
-var stripBom = require('strip-bom');
-var parseJson = require('parse-json');
-var Promise = require('pinkie-promise');
-var pify = require('pify');
-
-function parse(x, fp) {
-	return parseJson(stripBom(x), path.relative(process.cwd(), fp));
-}
-
-module.exports = function (fp) {
-	return pify(fs.readFile, Promise)(fp, 'utf8').then(function (data) {
-		return parse(data, fp);
-	});
-};
-
-module.exports.sync = function (fp) {
-	return parse(fs.readFileSync(fp, 'utf8'), fp);
-};