MyController: TreeNodeSearch bug fix. 
- Passed the string from the 'searchTextField' into the search. 
- Check for successful match and print to console. 
- Separated 'fastForward' (whole search function) and 'fastForwardTier'
(each tier up to the match) into separate Booleans.
MyController: TreeNodeSearch
- Move 'checkMatchesUserSelection' check outside of checking for
children nodes.
MyController: TreeNodeSearch
- Checking for the 'fastForwardTier' while looping through the children
will check against the child nodes (nextNode) instead of the parent
(node).
MyController: TreeNodeSearch. 
- Update selection when matching search term.