I have a Bitbucket 5.x installation on RHEL7 that was installed by root, and so the process is running as root. Because of this, elasticsearch will not run. I tried changing ownership of both the Bitbucket installation and data directories and then restarting the process with the new account by putting the new account name in 'set-bitbucket-user.sh', but that did not work. What is the correct way to change the Bitbucket ownership from root to another user?