Last declaration in a block does not require a semicolon

[mccutchen]

Hi,

I've just started using Spritemapper as a part of my assset-building pipeline, and I've run into an issue with its CSS parsing. It raises a RuntimeError when the last declaration in a block is not terminated by a semicolon, but I don't believe that should be an error according to the spec.

I ran into this because my current pipeline goes

Sass compiler => YUI Compressor => Spritemapper

and the YUI Compressor always removes the semicolon following the last declaration in a block. I can probably update my pipeline, but I figured I'd submit this minor pull request in the meantime. It's minor mostly because the code was already in place to properly handle this case but was hidden behind the raise RuntimeError... exception.

There must be some reason that exception was put in place, though, so I'm sorry if I'm wasting your time.

Thanks for a great project!

[dotherightthing]

Yes please, I am trying out spritemapper and also ran into this issue.

[designbyadrian]

I have this problem too. Easy fix, but at first I was confused by the error. Either fix the requirements, or make the error message more clear that it's a CSS problem and on which line.

Please :)