Added option to update the high attribute as optional
Add option to remove Finish button
Merge branch 'finish'
Merge pull request #4 from lilleyt/develop

Respect the disabled class on the next and previous buttons
Merge pull request #5 from lilleyt/finish

Add option to remove Finish button
Merge pull request #1 from robertobermejo/master

Add optional parameter
Merge branch 'master' into develop
Substitute span for label in examples