.travis.yml: enabled JAVA 8 builds with gcc
.travis.yml: enabled JAVA 8 builds with gcc

Signed-off-by: Mihai Tudor Panu <a27de6130c5d32f5817bf40bb8b348582f37a8af@intel.com>
Signed-off-by: Brendan Le Foll <3e0e8c4069934e8b47d99704927a85c66c0ceb33@intel.com>

ProfFan/mraa,Pillar1989/mraa,Hbrinj/mraa,arunlee77/mraa,jontrulson/mraa,andreivasiliu2211/mraa,Propanu/mraa,jontrulson/mraa,anonymouse64/mraa,arunlee77/mraa,KurtE/mraa,sergev/mraa,stefan-andritoiu/mraa,ncrastanaren/mraa,whbruce/mraa,intel-iot-devkit/mraa,Hbrinj/mraa,spitfire88/mraa,stefan-andritoiu/mraa-gpio-chardev,malikabhi05/mraa,arfoll/mraa,sergev/mraa,Hbrinj/mraa,whbruce/mraa,g-vidal/mraa,KurtE/mraa,yongli3/mraa,alext-mkrs/mraa,arfoll/mraa,KurtE/mraa,andreivasiliu2211/mraa,malikabhi05/mraa,stefan-andritoiu/mraa-gpio-chardev,stefan-andritoiu/mraa,arfoll/mraa,ProfFan/mraa,Jon-ICS/mraa,sergev/mraa,ProfFan/mraa,anonymouse64/mraa,jontrulson/mraa,whbruce/mraa,yongli3/mraa,KurtE/mraa,arunlee77/mraa,stefan-andritoiu/mraa,intel-iot-devkit/mraa,arunlee77/mraa,spitfire88/mraa,Propanu/mraa,ncrastanaren/mraa,Jon-ICS/mraa,stefan-andritoiu/mraa,andreivasiliu2211/mraa,stefan-andritoiu/mraa-gpio-chardev,w4ilun/mraa,spitfire88/mraa,ncrastanaren/mraa,ncrastanaren/mraa,Propanu/mraa,Pillar1989/mraa,sergev/mraa,jontrulson/mraa,jontrulson/mraa,w4ilun/mraa,stefan-andritoiu/mraa-gpio-chardev,malikabhi05/mraa,malikabhi05/mraa,petreeftime/mraa,Propanu/mraa,arfoll/mraa,alext-mkrs/mraa,ProfFan/mraa,andreivasiliu2211/mraa,Pillar1989/mraa,petreeftime/mraa,spitfire88/mraa,petreeftime/mraa,intel-iot-devkit/mraa,alext-mkrs/mraa,KurtE/mraa,petreeftime/mraa,intel-iot-devkit/mraa,stefan-andritoiu/mraa-gpio-chardev,anonymouse64/mraa,Jon-ICS/mraa,yongli3/mraa,whbruce/mraa,stefan-andritoiu/mraa,yongli3/mraa,g-vidal/mraa,Propanu/mraa,ncrastanaren/mraa,alext-mkrs/mraa,yongli3/mraa,g-vidal/mraa,alext-mkrs/mraa,sergev/mraa,intel-iot-devkit/mraa,arfoll/mraa,w4ilun/mraa,g-vidal/mraa,malikabhi05/mraa,Hbrinj/mraa,g-vidal/mraa,w4ilun/mraa