Adding exception for no token when trying to get a handle
mime type of .tar.gz and .tar.bz2 is not detected as type tar, so adding code to handle tar.bz2 and tar.gz files, minor indentation changes as well
Putting Sri back in the authors list, spacing
Updating demo script to include more compressed file examples (.gz,.bz2,.tar.bz2,.tar.gz,.zip), split file paired end reads, better object listings