chore: add minify version

- setup gulp
- setup necessary plugins to get the minified version
- update the demo to user the minified version
- update travis node version to work with gulp

Author: cironunes

.travis.yml

@@ -1,6 +1,6 @@
 language: node_js
 node_js:
-  - 0.8
+  - 0.10
 before_script:
   - export DISPLAY=:99.0
-  - sh -e /etc/init.d/xvfb start
+  - sh -e /etc/init.d/xvfb start

demo.html

@@ -28,7 +28,7 @@ <h1>cn.offCanvas</h1>
 	</div>
 
 	<script src="bower_components/angular/angular.js"></script>
-	<script src="off-canvas.js"></script>
+	<script src="off-canvas.min.js"></script>
 	<script>
 		angular.module('demoApp', ['cn.offCanvas'])
 			.factory('demoOffCanvas', function(cnOffCanvas) {
@@ -41,4 +41,4 @@ <h1>cn.offCanvas</h1>
 			})
 	</script>
 </body>
-</html>
+</html>

gulpfile.js

@@ -0,0 +1,16 @@
+var gulp = require('gulp');
+var ngmin = require('gulp-ngmin');
+var rename = require('gulp-rename');
+var uglify = require('gulp-uglify');
+
+var paths = {
+  scripts: ['off-canvas.js']
+}
+
+gulp.task('default', function() {
+  return gulp.src(paths.scripts)
+    .pipe(ngmin())
+    .pipe(rename({suffix: '.min'}))
+    .pipe(uglify({mangle: false}))
+    .pipe(gulp.dest('.'));
+});

off-canvas.min.js

@@ -29,6 +29,10 @@
     "karma-chrome-launcher": "~0.1.2",
     "karma-ie-launcher": "~0.1.1",
     "karma-firefox-launcher": "~0.1.3",
-    "karma-junit-reporter": "~0.2.1"
+    "karma-junit-reporter": "~0.2.1",
+    "gulp": "~3.5.6",
+    "gulp-ngmin": "~0.1.2",
+    "gulp-rename": "~1.2.0",
+    "gulp-uglify": "~0.2.1"
   }
 }