Aborting if there are duplicate styles

[Melindrea]

I think that's the first thing that's coming to my mind. I'd be wanting to use CSSCSS in automated testing, setting a threshold for what I'd find acceptable, and then have it abort if there are duplicate styles.

I can also, obviously, see why people might not want that, but what do you think about an option for "break on duplicate"?

[peterkeating]

Excellent suggestion :) Will have a play around with implementing this option.

[peterkeating]

Added featureWhenDuplicates option, which when set to true will fail the grunt task if CSSCSS reports any rules sets that contain duplicates. Have pushed this into version 0.3.0, which I have just published to NPM, so if you update the grunt-csscss package, you should be able to use that option.