update jacoco to latest version, 0.6.X does not work with jdk 8
update jacoco to latest version, 0.6.X does not work with jdk 8

ancho/jbake,mtolk/jbake,mohitkanwar/jbake,haumacher/jbake,Vad1mo/JBake,HuguesH/jbake,ancho/jbake,ineiros/jbake,rajmahendra/jbake,rajmahendra/jbake,uli-heller/jbake,leonac/jbake,HuguesH/jbake,xuyanxiang/jbake,kaulkie/jbake,kaulkie/jbake,uli-heller/jbake,Vad1mo/JBake,rajmahendra/jbake,uli-heller/jbake,kaulkie/jbake,Vad1mo/JBake,danielgrycman/jbake,jbake-org/jbake,jonbullock/jbake,jonbullock/jbake,haumacher/jbake,xuyanxiang/jbake,haumacher/jbake,mtolk/jbake,mohitkanwar/jbake,haumacher/jbake,xuyanxiang/jbake,leonac/jbake,danielgrycman/jbake,ineiros/jbake,mohitkanwar/jbake,ineiros/jbake,mtolk/jbake,danielgrycman/jbake,jbake-org/jbake,HuguesH/jbake,leonac/jbake