grunt-contrib checklist

[jamesplease]

This is the list of grunt-contrib tasks that need updates to the source mapping options.

• [ ] grunt-contrib-concat
• [ ] grunt-contrib-uglify
• [ ] grunt-contrib-coffee
• [ ] grunt-contrib-requirejs
• [ ] grunt-contrib-cssmin*
• [ ] grunt-contrib-sass
• [ ] grunt-contrib-less
• [ ] grunt-contrib-compass
• [ ] grunt-contrib-stylus*

Notes:

* The associated libraries don't fully support sourcemaps

• clean-css doesn't support source maps yet. (ref)
• neither does stylus (ref)

[mzgoddard]

Turned todos into links for each related project.