rasmus and compbio library updates from yjw

@wutron 

This PR contains just the updates to the libraries (rasmus and compbio) done in the larger PR https://github.com/mdrasmus/compbio/pull/1. Let's discuss the changes here and then merge them in. Once merged, the full [PR](https://github.com/mdrasmus/compbio/pull/1) diff will shrink.