Use unload-feature function
Skip ert vendor
Improve Makefile tasks
Use cl-lib instead of cl.
No need to add root path to load-path
Specify files in Cask-file
Add undercover test coverage
Update Travis config
Use noflet instead of cl-lib
Add Coveralls badge
Merge branch 'travis-and-co'
Release v0.4.0.
Update using new undercover API