added option defaults
auto focus feature
Merge pull request #11 from otaviosoares/feature/autofocus

Autofocus option
Fixes #2 - The bug was caused by the attribute stripper running before the keyup event where the placeholder was to be removed.
Fixes #13
Fixed the bad behaviour of the Add link. Basically, the code was unbinding the wrong event. For each keydown on the link creator the event would fire multiple times (the number of times it had fired before + 1) and then links would be created using a selection that was on a scope that shouldn't be valid anymore.