put vimux pane to the right
use the same workflow for running tests across languages

this is a simple fix for the grb test setup I copied years ago. This
change will allow me to run tests and navigate test->implementation in
the same way across languages.

only beginning php implementation has been made (since this is what I am
working on today).

I have setup fallbacks for both node (npm test), javascript in general
(via grunt test)
adds karma singlerun
first iteration of php navigation