Add support for script elements. Update tests. Update docs.

lib/script.js

@@ -0,0 +1,36 @@
+const co = require('co');
+const fs = require('mz/fs');
+const isLocalPath = require('is-local-path');
+const isTemplateExpression = require('./is-template-expression');
+const path = require('path');
+const R = require('ramda');
+
+const forEachIndexed = R.addIndex(R.forEach);
+
+const inlineScript = co.wrap(function * ($, filename) {
+  var basedir = path.dirname(filename);
+  var files;
+  try {
+    const scripts = $('script')
+      .filter((index, element) => {
+        const source = $(element).attr('src');
+        return isLocalPath(source) && !isTemplateExpression(source);
+      })
+      .toArray();
+    const getFilename = element => path.resolve(basedir, $(element).attr('src'));
+    const filenames = R.map(getFilename, scripts);
+    files = R.uniq(filenames);
+    const readFile = filename => fs.readFile(filename, 'utf8');
+    const contents = yield R.map(readFile, filenames);
+    const replaceScript = (script, index) => $(script).attr('src', null).html(contents[index]);
+    forEachIndexed(replaceScript, scripts);
+    return { $, files };
+  }
+  catch (error) {
+    error.filename = filename;
+		error.files = files;
+		throw error;
+  }
+});
+
+module.exports = inlineScript;