install g++ 4.8 in travis
install g++ 4.8 in travis

FredericHeem/starhackit,jhuntoo/starhackit,jhuntoo/starhackit,jhuntoo/starhackit,jhuntoo/starhackit,FredericHeem/starhackit,FredericHeem/starhackit,FredericHeem/starhackit