Add ClojureScript support

[clyfe]

Issue #15

[weavejester]

Can you remove the Add deps.edn commit? A PR should contain commits relating to a single change.

[kidpollo]

Merging this would be awesome!

[twashing]

Merging this would be awesome!

I also have a use case that needs Clojurescript support. Lo and behold this PR is already here. Thanks for the work @clyfe!

[ckirkendall]

@weavejester - is there anything in this PR that is holding up bringing this into the main line.

[weavejester]

@weavejester - is there anything in this PR that is holding up bringing this into the main line.

Mostly me finding time to test this, since it currently can't be done automatically.

Speaking of which, there doesn't appear to be any development setup for this change. I've confirmed the Clojure version works, but I'd appreciate some :dev profile setup for ClojureScript, so I can test that as well.