Bind alert message on a nested span, closes #208

The `alert` directive has `replace: true`, which removes the initial DOM
element and hence cause the binding to fail.
Add alerts timeout, closes #209
Merge pull request #75 from tlvince/bug/missing-close-alert-button

Bind alert message on a nested span, closes #208
Merge pull request #76 from tlvince/bug/alerts-overflow

Add alerts timeout, closes #209
Add coveralls badge
Set up karma-coverage and coveralls task
Disable coveralls debug, add to Travis task
Remove empty index file
Merge pull request #77 from tlvince/feature/coveralls

Adds test coverage reports
Merge pull request #78 from tlvince/refactor/rm-empty-file

Remove empty index file
Merge branch 'main-lmis-master'