chain compilation doesn't seem to work for multiple imports about sass-brunch

[paulmillr]

progeny module at this line is responsible for this

https://github.com/brunch/sass-brunch/blob/master/index.js#L23

@es128 ?

[es128]

Yeah progeny is not set up to parse multi-line import statements, nor even multiple dependencies in one import statement atm. I wasn't aware that syntax was allowed when I was writing it.

PRs welcome.

[es128]

closing as dupe of #49