#1: Fix undefined function during compilation.
Update compatibility info.
Bump copyright year.
Add .dir-locals file with coding conventions.
Declare stable release 1.0.
Fix problem where helper overlays were created beyond the bounds.
Fix line length.
Fix indentation.
Add travis-ci configuration.
Add basic regression test.
Add ert for Emacs 22 in travis-ci.org.
Add README with travis build state.
Add travis-ci configuration.
Bump version to 1.0.1.
Workaround for deleted overlay during callback.