Using global config instead of grunt-env task.
Added path normalisation to development mode.
Using native array map method.
Added path normalisation to production mode.
Can specify paths to store js and css output.
Tests reflect new behaviour.
Relaxed versions on devDependencies that aren't peerDependencies.
Relaxed remaining versions.
Added grunt-release.

Using variables in gruntfile.
Passes jshint check.
Removed support for node 0.8.
Updated readme to reflect new features.

Added default options.
Removed options from gruntfile that match defaults.