--strict and font-face optimizations

[rstacruz]

Looks like --strict doesn't support multiple font faces.

@font-face { font-family: 'Exo'; src: url(exo.ttf); }
@font-face { font-family: 'Exo'; src: url(exo.ttf); }
@font-face { font-family: 'Oswald'; src: url(oswald.ttf); }

Expected output:

@font-face{font-family:Exo;src:url(exo.ttf)}@font-face{font-family:Oswald;src:url(oswald.ttf)}

Actual output (v0.2.0):

@font-face{font-family:Oswald;src:url(oswald.ttf)}

[ded]

there are general bugs overall when introducing @'s that need to be resolved.