Add timer logging to jenkins test runs

scripts/jenkins-common.sh

@@ -31,3 +31,8 @@ PATH=$PATH:node_modules/.bin
 # (In this case, remove it. That ensures from run-to-run, it is a clean npm environment)
 echo "--> Cleaning npm cache"
 npm cache clean
+
+# Log any paver or ansible command timing
+TIMESTAMP=$(date +%s)
+export PAVER_TIMER_LOG="test_root/log/timing.paver.$TIMESTAMP.log"
+export ANSIBLE_TIMER_LOG="test_root/log/timing.ansible.$TIMESTAMP.log"