Add links to new symbol view.
Basic implementation of method breakdown.

Show the current, parent, and child methods for a given symbol.
There is still some work to be done to clean things up and
ensure the data is correct.
Fix mistakes in symbol view.

There are multiple parents, and current was calculated incorrectly.
Make tables sortable.
Add back link and style it.
Add tests for getRelatives.
Merge pull request #8 from preinheimer/drilldown-ui

Add method drilldown ui