Replace polling file watcher with Hawk

Merge pull request #10 from jumarko/master

Retry on all exceptions

Release 0.1.3

Updae copyright year in README

Merge pull request #5 from leppert/patch-2

Update docs with cljc default

Merge pull request #3 from lvh/patch-1

Also watch cljc files

Release 0.1.2

Factor out default-paths into function

Make :import brackets consistent

Tidy up directory list code

Move :paths docs to top of options

Make README a little clearer in places