reformatting grunt file
new demo page - work in progress
dirSelectable
more doc sections
Merge branch 'master' of github.com:wix/angular-tree-control
change onExpand to onNodeToggle, added tests, added docs.
docs for expanded nodes
support full binding for selected node, including test and docs
doc styling
added custom children
custom css classes
reorganization of the demo
added updating the tree section
expaded-nodes binding
reordering, docs reformatting