refactor: use async / await (#52)

BREAKING CHANGE: The API has changed from callbacks to async/await. Additionally, the use has changed. See the README for usage guidance.

.gitignore

@@ -1,43 +1,4 @@
-docs
-**/node_modules/
-**/*.log
-test/repo-tests*
-**/bundle.js
-
-# Logs
-logs
-*.log
-
-coverage
-
-# Runtime data
-pids
-*.pid
-*.seed
-
-# Directory for instrumented libs generated by jscoverage/JSCover
-lib-cov
-
-# Coverage directory used by tools like istanbul
-coverage
-
-# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
-.grunt
-
-# node-waf configuration
-.lock-wscript
-
-build
-
-# Dependency directory
-# https://www.npmjs.org/doc/misc/npm-faq.html#should-i-check-my-node_modules-folder-into-git
 node_modules
-
-lib
-dist
-test/test-data/go-ipfs-repo/LOCK
-test/test-data/go-ipfs-repo/LOG
-test/test-data/go-ipfs-repo/LOG.old
-
-# while testing npm5
-package-lock.json
+.nyc_output
+coverage
+docs