Minor refactoring to make testing easier
Tests for artifacts functionality
fixes failures in test-find-invokes

- works around weird #' problem
use io/resources for test resources
Replace clj-http with http-kit and data.json
Merge pull request #5 from clojure-emacs/artifact-tests

Artifact tests
Fix a few typos
Bump tools.nrepl dep to 0.2.6
find symbol in project #6

- simple clojure client
  - long timeout for find-symbol msgs
- one nrepl msg per found symbol
- integration test with clj client
- optionally define clj-dir to search in
- only reads .nrepl-port file if exists