Inplace upgrade to CQ 5.4 GA

1. turn off replication agents
2. back up (snapshot or online backup.. in case something goes wrong)
3. remove /etc/workflow/instances
4. create /etc/workflow/instances :: sling:Folder
5. remove /var/eventing/jobs
6. create /var/eventing/jobs :: sling::OrderedFolder
7. change the admin password to "admin" (for CRX.. probably for other things too)
8. shutdown CQ
9. cp crx-quickstart/server/serverctl ~/backup/ (back up other stuff too if you want to)
10. rm -rf crx-quickstart/launchpad
11. rm -rf crx-quickstart/server
12. rm -rf crx-quickstart/logs
13. mv ~/Downloads/cq-quickstart-5.4.0.jar /opt/cq/
14. sudo su day (MAKE SURE you are the same user CQ runs as)
15. java -XX:MaxPermSize=256m -Xmx1024m -Dsling.run.modes=author,production -jar cq-quickstart-5.4.0.jar -v -p 4502
16. deploy.sh <build-number> (launchpad is wiped out.. so need to redeploy stuff)
17. enable replication agents
18. test
19. restart CQ using serverctl

CQ upgrade gotchas:
admin password should be changed to "admin" or bad things happen.
emptying out /etc/workflow/instances save time for an upgrade.
removing crx-quickstart/launchpad does you many good. otherwise, OSGi bundles don't get fully upgraded.

make sure you restart CQ for an upgrade as a proper user. Otherwise, the crx-quickstart/repository will be messed up.