new dependency in index.html for trees
merge index
new tree directive, styling, and customization to work with code children data
wire up new directive
rename variable to be clearer as to use of highligh to match exact phrases vs to match by word
some additional styling to make the tree styles and highlights work better. Still lots of room for improvement here
add dependency of new directive to the app.js
render tree only when the data is reterned (use ng-if here)
remove console.logs
adjust template that generates table directive by passing appropriate data to the directive