IvanDeMarino: Adding myself to ".svn-authors"


git-svn-id: https://selenium.googlecode.com/svn/trunk@18455 07704840-8298-11de-bf8c-fd130f914ac9
IvanDeMarino: README.md now uses GitHub-Markdown.

This still allows great readibility but gives our github-mirror that extra touch.

git-svn-id: https://selenium.googlecode.com/svn/trunk@18456 07704840-8298-11de-bf8c-fd130f914ac9