Merge pull request #48 from marc-hanheide/marathon

Marathon as currently testing on http://lcas.lincoln.ac.uk/linda/marathon.html
Merge branch 'marathon' of github.com:strands-project/strands_webtools into marathon
Update README.md
added mjpeg_server params
Merge branch 'marathon' of github.com:strands-project/strands_webtools into marathon