Bump version to 0.0.6

- Update README (#17 and #21):
  - Improve documentation of `replace` option with the help of
    @poacher2k
  - Tidy and reword some parts
- Use webpack to build UMD bundle (#22)
  - Build to `./dist/` directory before publish
- Fix regex bug on client parser (#24)
  - Add test for `window.DOMParser`

package.json

@@ -1,6 +1,6 @@
 {
   "name": "html-react-parser",
-  "version": "0.0.5",
+  "version": "0.0.6",
   "description": "An HTML to React parser.",
   "author": "Mark <[email protected]>",
   "main": "index.js",