Removed Node4 Travis test
Removed Node4 Travis test

Node4 is extremely old and causing issues with JournalDAO.
jacksonic/vjlofvhjfgm,jacksonic/vjlofvhjfgm,foam-framework/foam2,foam-framework/foam2,TanayParikh/foam2,jacksonic/vjlofvhjfgm,foam-framework/foam2,TanayParikh/foam2,TanayParikh/foam2,foam-framework/foam2,TanayParikh/foam2,foam-framework/foam2