Add simple Travis CI config for testing
Add simple Travis CI config for testing

qiuxin2012/BigDL,wzhongyuan/BigDL,luchy0120/BigDL,psyyz10/BigDL,122689305/BigDL,zhangxiaoli73/BigDL,i8run/BigDL-1,luchy0120/BigDL,yiheng/BigDL,sethah/BigDL,zhangxiaoli73/BigDL,jenniew/BigDL,zhangxiaoli73/BigDL,luchy0120/BigDL,qiuxin2012/BigDL,wzhongyuan/BigDL,sethah/BigDL,psyyz10/BigDL,122689305/BigDL,qiuxin2012/BigDL,JerryYanWan/BigDL,psyyz10/BigDL,JerryYanWan/BigDL,i8run/BigDL-1,sethah/BigDL,122689305/BigDL,jenniew/BigDL,yiheng/BigDL,jenniew/BigDL,i8run/BigDL-1,JerryYanWan/BigDL,wzhongyuan/BigDL,yiheng/BigDL