add some more metrics, and a metrics index html page
make penalty worse for an error response
Updated Readme.md for Ubuntu 12.04 & fixed issues
Updated Readme.md post discussions with rchatley
Update README.md
Merge pull request #27 from neomatrix369/master

 Updated Readme.md for Ubuntu 12.04 & fixed issues
Takes care of rounding errors

Both Math.cbrt() and Math.sqrt() return floats with rounding
errors. Rounding off to 4 digits precision seems to be good enough and
makes the specs pass.
Uses Hamls built in html escaping
Merge pull request #28 from valtech/master

Small bugfixes
merge from rchatley/master