Test packaged release binaries after bundling

[jeaye]

We currently run the in-source tests after compiling, but it would be helpful to smoke test the packaged distributions to ensure all necessary files are in there, in the right place, and that the basic functionality works.

• Run the jank compiler test suite for each packaged distribution
• Run the jank runtime test suite for each packaged distribution

Right now, we just have a compiler suite. The runtime suite should use a jank implementation of clojure.test to test the whole of clojure.core and other namespaces shipped with jank. The runtime suite is blocked on #31.