Added conditional CC setting to gcc-4.8 if CC=='gcc' from travis config
Added conditional CC setting to gcc-4.8 if CC=='gcc' from travis config

rcrane/kinetic-c,chenchongli/kinetic-c,rcrane/kinetic-c,chenchongli/kinetic-c,Kinetic/kinetic-c,benmcclelland/kinetic-c,Seagate/kinetic-c,Seagate/kinetic-c,kinjalcpatel/kinetic-c,kinjalcpatel/kinetic-c,rcrane/kinetic-c,Seagate/kinetic-c,rcrane/kinetic-c,chenchongli/kinetic-c,Seagate/kinetic-c,Kinetic/kinetic-c,benmcclelland/kinetic-c,Kinetic/kinetic-c,Kinetic/kinetic-c,benmcclelland/kinetic-c,chenchongli/kinetic-c,benmcclelland/kinetic-c,benmcclelland/kinetic-c,kinjalcpatel/kinetic-c,kinjalcpatel/kinetic-c