Public offering of immutable-bitset library as Clojure contrib library

[Andy Fingerhut]

I, Andy Fingerhut, offer the immutable-bitset library as a Clojure contribution:

    https://github.com/ztellman/immutable-bitset

All work was created wholly by the following contributors: Zach Tellman, Andy Fingerhut, Reid Draper. 

I give my permission to release this work under the Clojure Contributor Agreement.

Andy Fingerhut

[Reid Draper]

I, Reid Draper, offer the immutable-bitset library as a Clojure contribution:

    https://github.com/ztellman/immutable-bitset

All work was created wholly by the following contributors: Zach Tellman, Andy Fingerhut, Reid Draper. 

I give my permission to release this work under the Clojure Contributor Agreement.

Reid