[Gandiva] Perf Improvments 
[Gandiva] Perf Improvments 

1. In evaluate to lookup module, first do without lock and fallback only if
   module is not found.
2. Use release builds in travis.

majetideepak/arrow,xhochy/arrow,itaiin/arrow,cpcloud/arrow,wesm/arrow,pcmoritz/arrow,renesugar/arrow,cpcloud/arrow,renesugar/arrow,kou/arrow,tebeka/arrow,wesm/arrow,xhochy/arrow,icexelloss/arrow,majetideepak/arrow,tebeka/arrow,cpcloud/arrow,itaiin/arrow,majetideepak/arrow,kou/arrow,majetideepak/arrow,pcmoritz/arrow,majetideepak/arrow,majetideepak/arrow,kou/arrow,pcmoritz/arrow,apache/arrow,laurentgo/arrow,kou/arrow,laurentgo/arrow,renesugar/arrow,pcmoritz/arrow,itaiin/arrow,majetideepak/arrow,tebeka/arrow,laurentgo/arrow,apache/arrow,xhochy/arrow,pcmoritz/arrow,cpcloud/arrow,apache/arrow,majetideepak/arrow,apache/arrow,pcmoritz/arrow,xhochy/arrow,xhochy/arrow,apache/arrow,apache/arrow,pcmoritz/arrow,kou/arrow,tebeka/arrow,pcmoritz/arrow,icexelloss/arrow,itaiin/arrow,xhochy/arrow,wesm/arrow,wesm/arrow,apache/arrow,icexelloss/arrow,icexelloss/arrow,renesugar/arrow,majetideepak/arrow,wesm/arrow,laurentgo/arrow,renesugar/arrow,tebeka/arrow,majetideepak/arrow,wesm/arrow,apache/arrow,tebeka/arrow,laurentgo/arrow,pcmoritz/arrow,apache/arrow,itaiin/arrow,majetideepak/arrow,cpcloud/arrow,xhochy/arrow,itaiin/arrow,renesugar/arrow,icexelloss/arrow,majetideepak/arrow,xhochy/arrow,laurentgo/arrow,laurentgo/arrow,renesugar/arrow,tebeka/arrow,renesugar/arrow,icexelloss/arrow,wesm/arrow,renesugar/arrow,xhochy/arrow,pcmoritz/arrow,icexelloss/arrow,itaiin/arrow,apache/arrow,kou/arrow,laurentgo/arrow,itaiin/arrow,renesugar/arrow,icexelloss/arrow,xhochy/arrow,xhochy/arrow,wesm/arrow,renesugar/arrow,renesugar/arrow,cpcloud/arrow,kou/arrow,cpcloud/arrow,kou/arrow,laurentgo/arrow,renesugar/arrow,kou/arrow,icexelloss/arrow,kou/arrow,cpcloud/arrow,laurentgo/arrow,pcmoritz/arrow,cpcloud/arrow,wesm/arrow,xhochy/arrow,kou/arrow,itaiin/arrow,itaiin/arrow,tebeka/arrow,apache/arrow,kou/arrow,itaiin/arrow,pcmoritz/arrow,kou/arrow,renesugar/arrow,kou/arrow,itaiin/arrow,majetideepak/arrow,wesm/arrow,wesm/arrow,majetideepak/arrow,majetideepak/arrow,laurentgo/arrow,icexelloss/arrow,icexelloss/arrow,cpcloud/arrow,cpcloud/arrow,renesugar/arrow,cpcloud/arrow,icexelloss/arrow,apache/arrow,laurentgo/arrow,itaiin/arrow,wesm/arrow,apache/arrow,laurentgo/arrow,pcmoritz/arrow,cpcloud/arrow,pcmoritz/arrow,xhochy/arrow,laurentgo/arrow,xhochy/arrow,wesm/arrow,wesm/arrow,tebeka/arrow,apache/arrow,laurentgo/arrow,icexelloss/arrow,cpcloud/arrow,pcmoritz/arrow,itaiin/arrow,itaiin/arrow,xhochy/arrow,tebeka/arrow,icexelloss/arrow