ignore some dev files
clarify a bit

It's not as compact but I think it's a bit more approachable.
use clojure.tools.reader for clj files
Add tests demonstrating some diffs in clj and edn cfg files
Update docs
Carica was released in 2012
Clarify
Was testing a nonexistent cfg file, hence the nil

Using a real cfg file results in the expected exception
Merge pull request #17 from sonian/read-clj-with-clj-reader

Read clj with clj reader