fixed failing test and reorganization of tests
added tests for expanded-nodes binding
new version
release 0.2.1
performance improvement for large trees, based on cintimedia suggestion
release 0.2.2
node comparison changed to equality
added link to the site in the docs
added bower badge
added support for $selectedNode, $first, $middle, $last, $odd and $even in tree label scope
update from master - tree label scope variables
added docs for label scope properties