Add LICENSE

Lists the W3C® Software License which can be found here:
http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
Create project using Maven and add dependencies

For more information about Apache Maven and how to read the Project
Object Model file (pom.xml), visit: http://maven.apache.org/ .

The following dependencies are added:
* Junit 4.11 ( http://junit.org/ );
* Jsoup 1.7.2 ( http://jsoup.org/ ); and
* async-http-client 1.7.18
  ( https://github.com/AsyncHttpClient/async-http-client ).
Add 'work-in-progress' disclaimer to README.md
Add assertor and i18n-checker class stubs
Add test case for I18nChecker

Not quite a unit test; runs the whole i18n-checker on the document at:
http://www.w3.org/ .
Add first two i18n assertion methods