Include uglify task

Gruntfile.coffee

-
 module.exports = (grunt) ->
-
     require('load-grunt-tasks') grunt, pattern: 'grunt-contrib-*'
 
     grunt.initConfig
-
         jshint:
-
           c3: 'c3.js'
           spec: 'spec/*.js'
           options:
             jshintrc: '.jshintrc'
 
         jasmine:
-
           c3:
             src: 'c3.js'
             options:
               specs: 'spec/*.js'
 
-    grunt.registerTask 'default', ['jshint', 'jasmine']
+        uglify:
+          c3:
+            files:
+              'c3.min.js': 'c3.js'
+
+    grunt.registerTask 'default', ['jshint', 'jasmine', 'uglify']

package.json

@@ -23,6 +23,7 @@
     "grunt": "~0.4.1",
     "grunt-contrib-jshint": "~0.7.1",
     "grunt-contrib-jasmine": "~0.5.2",
-    "load-grunt-tasks": "~0.2.0"
+    "load-grunt-tasks": "~0.2.0",
+    "grunt-contrib-uglify": "~0.4.0"
   }
 }