Travis: (re)addition of openjdk6 to the build matrix
Travis: (re)addition of openjdk6 to the build matrix

noncom/ccw,michelangelo13/ccw,laurentpetit/ccw,ccw-ide/ccw,noncom/ccw,michelangelo13/ccw,noncom/ccw,ccw-ide/ccw,laurentpetit/ccw,ccw-ide/ccw,michelangelo13/ccw,laurentpetit/ccw