Update .travis.yml
Update .travis.yml

Adding the jar build option to make sure all the modules compile.
RachelTucker/ds3_java_sdk,RachelTucker/ds3_java_sdk,RachelTucker/ds3_java_sdk,DenverM80/ds3_java_sdk,DenverM80/ds3_java_sdk,SpectraLogic/ds3_java_sdk,SpectraLogic/ds3_java_sdk,rpmoore/ds3_java_sdk,DenverM80/ds3_java_sdk,rpmoore/ds3_java_sdk,SpectraLogic/ds3_java_sdk,RachelTucker/ds3_java_sdk,DenverM80/ds3_java_sdk,SpectraLogic/ds3_java_sdk,rpmoore/ds3_java_sdk,rpmoore/ds3_java_sdk