Merge pull request #245 in G/fastr from ~MICK.JORDAN_ORACLE.COM/fastr:bugfix/jvmci-update to master

* commit '673cbf64':
  update to jvmci 0.19

ci.hocon

 java7 : {name : oraclejdk, version : "7",    platformspecific: true}
 #java8 : {name : oraclejdk, version : "8u66", platformspecific: true}
-java8 : {name : labsjdk, version : "8u92-jvmci-0.17", platformspecific: true}
+java8 : {name : labsjdk, version : "8u92-jvmci-0.19", platformspecific: true}
 
 common : {
   packages : {