Use released version of Guava: 19.0.0.jbossorg-1
Use released version of Guava: 19.0.0.jbossorg-1

 * this is a custom Guava build taken from current master.
   It is called 19* becuase it really is just 19 + bunch
   of fixes. Calling it 20* would be more confusing.

ryanzhang/droolsjbpm-build-bootstrap,ge0ffrey/droolsjbpm-build-bootstrap,ryanzhang/droolsjbpm-build-bootstrap,psiroky/droolsjbpm-build-bootstrap,ge0ffrey/droolsjbpm-build-bootstrap,drdaveg/droolsjbpm-build-bootstrap,psiroky/droolsjbpm-build-bootstrap,kiereleaseuser/droolsjbpm-build-bootstrap,droolsjbpm/droolsjbpm-build-bootstrap,droolsjbpm/droolsjbpm-build-bootstrap,livthomas/droolsjbpm-build-bootstrap,porcelli-forks/droolsjbpm-build-bootstrap,livthomas/droolsjbpm-build-bootstrap,drdaveg/droolsjbpm-build-bootstrap,porcelli-forks/droolsjbpm-build-bootstrap,kiereleaseuser/droolsjbpm-build-bootstrap