Add default build task to rebuild lib/ folder.

Refs #28

Author: nwronski

Gruntfile.js

@@ -360,14 +360,20 @@ module.exports = function(grunt) {
   require('load-grunt-tasks')(grunt);
 
   grunt.registerTask('default', [
-    'build'
+    'dist'
   ]);
   grunt.registerTask('build', [
     'clean:build',
     'shell:build',
     'babel:build'
   ]);
 
+  grunt.registerTask('dist', [
+    'demobuild',
+    'clean:release',
+    'copy:release',
+    'usebanner:release'
+  ]);
   grunt.registerTask('bin', [
     'clean:bin',
     'babel:bin',