Update build scripts.

lib/common/minify.js

@@ -0,0 +1,23 @@
+'use strict';
+
+var _ = require('lodash'),
+    fs = require('fs-extra'),
+    uglify = require('uglify-js');
+
+var uglifyOptions = require('./uglify.options.js');
+
+/*----------------------------------------------------------------------------*/
+
+function minify(inpath, outpath, callback, options) {
+  if (typeof outpath == 'function') {
+    outpath = undefined;
+    callback = options;
+  }
+  if (!outpath) {
+    outpath = inpath.replace(/(?=\.js$)/, '.min');
+  }
+  var output = uglify.minify(inpath, _.defaults(options, uglifyOptions));
+  fs.writeFile(outpath, output.code, 'utf-8', callback);
+}
+
+module.exports = minify;

lib/common/uglify.options.js

@@ -0,0 +1,16 @@
+module.exports = {
+  'mangle': true,
+  'compress': {
+    'comparisons': false,
+    'keep_fargs': true,
+    'pure_getters': true,
+    'unsafe': true,
+    'unsafe_comps': true,
+    'warnings': false
+  },
+  'output': {
+    'ascii_only': true,
+    'beautify': false,
+    'max_line_len': 500
+  }
+};