Make output and input files optional

[danielo515]

Hello,
Thank you for your library.

If there is something I like about broccoli is how it is just a file transformer, making the task of just transpiling files very easy and transparent. For me it is key that it just takes a folder as an input and produces the same folder structure as an output. This module does not follow that convention and forces me to include both an input tree, to select a list of files (why? doesn't that taken care on the tree ?) and to specify an output file. I would love to just take the scss files and turn them into css files on the output directory on the same path. Seems that this plugin is only able to produce one single output file, what If I have several scss input files and want several css output files ?

Thanks in advance

[danielo515]

Any comment about this?