Added <!DOCTYPE html> to the htmls to fix a firefox bug

Bug was found here: https://github.com/crawljax/crawloverview-plugin/issues/7
In stackoverflow: http://stackoverflow.com/questions/14286876/firefoxs-document-body-getboundingclientrect-top-is-incorrect/14290882#14290882
Merge branch 'master' of github.com:crawljax/crawljax into issue-89-cli
fixes #99 #63, adds browser support to CLI