Extract stacktraces into their own file.
line -> rawLine.
Specs for parsing Ruby stacktraces.
Silly Ruby-only failure-intolerant parsing code.
Catch the error message, too.
Close the EnterDialog on ESC.
Implement a registry of active stacktraces.
Start on a StacktraceView.

Let's get it to open stacktraces first.
Navigate to a StacktraceView on accept-trace.
Fuss with FrameView styles a little.