Update nw.js to 0.25.0 and nw-builder to 3.1.3

The current nw.js version has an issue with the file open dialog. It shoes squares instead of the correct font on Arch linux based systems. Updating the version to 0.25.0 fixes this issue.

NemProject#193

.gitignore

@@ -33,6 +33,7 @@ build/Release
 # App builds
 dist
 cache
+build
 
 # Dependency directories
 node_modules

gulpfile.js

@@ -124,7 +124,7 @@ gulp.task('views', function() {
 // Build App
 gulp.task('app', function () {
     var nw = new NwBuilder({
-        version: '0.14.6',
+        version: '0.25.0',
         files: './build/**',
         buildDir: './dist',
         buildType: 'versioned',

package.json

@@ -24,7 +24,6 @@
     "gulp-notify": "^2.2.0",
     "gulp-rename": "^1.2.2",
     "gulp-uglify": "^1.5.3",
-    "gulp-util": "^3.0.7",
     "bootstrap": "3.3.7",
     "jquery": "3.0.0",
     "marked": "^0.3.5",
@@ -35,8 +34,8 @@
     "gulp-autoprefixer": "^3.1.1",
     "gulp-sass": "^3.0.0",
     "gulp-util": "^3.0.8",
-    "nw": "^0.20.1",
-    "nw-builder": "^3.1.3",
+    "nw": "^0.25.0",
+    "nw-builder": "^3.4.1",
     "zxcvbn": "4.4.2"
   },
   "directories": {