Version: 0.0-5
Date: 2015-01-22
Text:

Version: 0.0-4
Date: 2013-07-11
Text: write_sigs now defaults to writing to stdout. Operators' and
        assignment fns' sigs wrapped in backquotes. Added siglist
        indexing.

Version: 0.0-3
Date: 2013-01-11
Text:

Version: 0.0-2
Date: 2012-07-25
Text:

Version: 0.0-1
Text: