Ported coffee charts to js

Signed-off-by: Sheik Hassan <solergiga@yahoo.com>
Merge pull request #648 from hassanNS/charts-js-port

Port coffee/charts/* to JavaScript
Remove all remaining CoffeeScript references

Signed-off-by: Don Naegely <naegelyd@gmail.com>
Add missing jshint option in Gruntfile and fix jshint errors

These errors were missed in the port PR because the maxlen option
appears in the .jshintrc file but not in the Gruntfile.

Signed-off-by: Don Naegely <naegelyd@gmail.com>
Merge pull request #664 from cbmi/no-more-coffee

Remove all remaining CoffeeScript references