Bumped version to 0.2.0

Signed-off-by: Snorre Magnus Davøen <snorre.davoen@nsd.no>

Use https://github.com/snorremd/failjure/tree/tools-deps fork via git dependency
while waiting for pull request to be merged into the main Failure library.

Adds reader conditionals to handle macro imports from Failure in the case of
ClojureScript. Make tests run in both Clojure and ClojureScript.

Updated README instructions, project definition, and changelog.
Signed-off-by: Snorre Magnus Davøen <snorre.davoen@nsd.no>

Adds AnnotatedFailure record with a data field.
Adds HasData protocol which allows extraction of data field.
Re-exports public symbols from failjure to allow import of only fejlure.
Documentation in README.md.
Changelog in CHANGELOG.md.
CI script to continuously test changes.
Signed-off-by: Snorre Magnus Davøen <snorre.davoen@nsd.no>