Fix stop called very soon after starting.

Close #122
Release 1.1.5
Warn when using relative_paths option when listening to multiple diretories

Close #120
Release 1.1.6
fix for issue #123 - can force an adapter class
update readme for force_adapter option
Merge pull request #124 from nicobrevin/feature-issue-123-specify-adapter

fix for issue #123 - can force an adapter class
Release 1.2.0
Ignore 'bundle' folder by default
Release 1.2.1