80% of the AssertionError stack trace is uninteresting mocha internal code

Suggestion:
suppress all frames from Test.Runnable.run and previous

Suggestion:

1. Reformat the stack trace so the first text is base-file:line:column, then Object.function, then directory.
2. Directory can be shortened to be relative to the deploy folder (ie. where app.js is)

I am using node assert, ui exports and spec reporter