wch/R6 — pull request #7 by gaborcsardi (2014-08-02 14:25:52+00:00)
Title: Fix printing classes/instances to the console, add trailing \n

Priting in RStudio was fine, because it probably adds a newline
as needed before printing the prompt. On the console a final
trailing newline was missing, which was annoying, because the
prompt appeared right at the end of the last line of the printout.