Update Travis CI configuration
Update Travis CI configuration

chongwf/OpenCC,j717273419/OpenCC,jakwings/OpenCC,capturePointer/OpenCC,BYVoid/OpenCC,mxgit1090/OpenCC,PeterCxy/OpenCC,xuecai/OpenCC,jakwings/OpenCC,xuecai/OpenCC,capturePointer/OpenCC,mxgit1090/OpenCC,chongwf/OpenCC,xuecai/OpenCC,j717273419/OpenCC,BYVoid/OpenCC,BYVoid/OpenCC,mxgit1090/OpenCC,BYVoid/OpenCC,BYVoid/OpenCC,j717273419/OpenCC,Arthur2e5/OpenCC,Arthur2e5/OpenCC,jakwings/OpenCC,wisperwinter/OpenCC,wisperwinter/OpenCC,capturePointer/OpenCC,Arthur2e5/OpenCC,PeterCxy/OpenCC,PeterCxy/OpenCC,chongwf/OpenCC,mxgit1090/OpenCC,BYVoid/OpenCC,wisperwinter/OpenCC