Change pack artifact to be more maven-like
Change pack artifact to be more maven-like

Original commit: elastic/x-pack-elasticsearch@e8eed37553e0ba514a8db4d19a9d3a5abf8899d4

strapdata/elassandra,coding0011/elasticsearch,GlenRSmith/elasticsearch,vroyer/elassandra,gfyoung/elasticsearch,scorpionvicky/elasticsearch,gingerwizard/elasticsearch,strapdata/elassandra,vroyer/elassandra,gingerwizard/elasticsearch,robin13/elasticsearch,robin13/elasticsearch,gingerwizard/elasticsearch,HonzaKral/elasticsearch,GlenRSmith/elasticsearch,scorpionvicky/elasticsearch,scorpionvicky/elasticsearch,vroyer/elassandra,robin13/elasticsearch,uschindler/elasticsearch,nknize/elasticsearch,coding0011/elasticsearch,gfyoung/elasticsearch,gingerwizard/elasticsearch,gingerwizard/elasticsearch,gingerwizard/elasticsearch,strapdata/elassandra,HonzaKral/elasticsearch,HonzaKral/elasticsearch,scorpionvicky/elasticsearch,coding0011/elasticsearch,nknize/elasticsearch,HonzaKral/elasticsearch,nknize/elasticsearch,uschindler/elasticsearch,uschindler/elasticsearch,robin13/elasticsearch,GlenRSmith/elasticsearch,scorpionvicky/elasticsearch,uschindler/elasticsearch,coding0011/elasticsearch,nknize/elasticsearch,nknize/elasticsearch,GlenRSmith/elasticsearch,gfyoung/elasticsearch,gfyoung/elasticsearch,robin13/elasticsearch,GlenRSmith/elasticsearch,gingerwizard/elasticsearch,strapdata/elassandra,gfyoung/elasticsearch,coding0011/elasticsearch,strapdata/elassandra,uschindler/elasticsearch