Added failing test
skip="empty" implementation
Skip whitespace as well
Documentation
Merge pull request #52 from melmothx/racke

Fixed spelling in credits
Merge pull request #53 from melmothx/feature/skip-empty

Add skip attribute for value and param elements.
Bump up version number.
Prepare Changes and README files for upcoming release.
Update available Perl versions for Travis.
Save and restore main specification object to prevent overwrites when processing lists (GH #54).
Remove debug message from iterator select test file.
Add iterator_default attribute for dropdowns.
Bump up version number.
Prepare Changes and README files for upcoming release.