Release 0.3.0

[pesterhazy]

• update unrepl blob
• merge parfix branch behind feature flag
• Capture Enter key #51
• Autoformat codebase #53
• test on linux
• update release notes
• release announcement
• ask for homebrew update
• BUG: compliment flag is broken
• --help
• --debug so that it shows the tmux split screen
• exceptions ugly with Clojure 1.8.0: 1.8.0 or below: Throwable->map not readable unrepl#27