Bug 1078150 - Still using old LOG env in jbossews cartridge managed_files.yml

Check the managed_files.yml for jbossews app, can find
env/OPENSHIFT_JBOSSEWS_LOG_DIR listed in it. Not sure why this file was
listed in the managed_files.yml as locked_file, but need use the new
env.
Merge pull request #27 from bparees/remove_jbossews_log_ref

Bug 1078150 - Still using old LOG env in jbossews cartridge managed_file...