Don't write empty non-stdout lines to console (#45)
Don't write empty non-stdout lines to console (#45)

The behavior of the test runner is that for messages that don't go through the "stdout" wrapper in mocha is that it adds a newline.  In our test setup we periodically get random empty console events which causes the test output to be staggered.  I've updated the handleConsole event handler to not add a newline.

Co-authored-by: Dave King <a3cd222ea982fef7e4d761fbe5435903b90070ac@chartio.com>
direct-adv-interfaces/mocha-headless-chrome,direct-adv-interfaces/mocha-headless-chrome,direct-adv-interfaces/mocha-headless-chrome