Upgrade travis build, clean up targets for CI.
Upgrade travis build, clean up targets for CI.

xsobolx/robospice,Proper-Job/robospice,fahmihidayah/robospice,hgl888/robospice,hejunbinlan/robospice,johnjohndoe/robospice,dgyuri/robospice-minimal,johnjohndoe/robospice,git4slash/robospice,rav3n/robospice,hgl888/robospice,rabyunghwa/robospice,stephanenicolas/robospice,rabyunghwa/robospice,git4slash/robospice,jxauchengchao/robospice,rav3n/robospice,xsobolx/robospice,ldw85/robospice,fahmihidayah/robospice,arunlodhi/robospice,hejunbinlan/robospice,Proper-Job/robospice,JunyiZhou/robospice,arunlodhi/robospice,jxauchengchao/robospice,stephanenicolas/robospice,dgyuri/robospice-minimal,JunyiZhou/robospice,ldw85/robospice