Bug 1025043

Added logging to assist in debugging errors when haproxy's
update-cluster control method fails.
Bug 1019219 - Exclude USER,SHELL and LOGNAME from passenv.conf
Bug 1025204
Merge pull request #4059 from ncdc/log-info-on-manifest-permission-denied

Merged by openshift-bot
Merge pull request #4061 from mfojtik/bugzilla/1019219

Merged by openshift-bot
Merge pull request #4062 from danmcp/master

Merged by openshift-bot