Console: Make sure excluded_tags is set

When listing the custom cartridge type (i.e., the diy cartridge), make
sure that excluded_tags in case it was not set earlier.  This commit
fixes bug 982882.
<controller> - Return client_message as warning instead of info
Bug 969876 - Don't run execute_connections if there are no add/remove component ops
Bug 982994 - Minor: add version/help options to usage info
The mutex needs to be a global that is instantiated early in order to work in all contexts.
Merge pull request #3070 from detiber/info2warn

Merged by openshift-bot
bump_minor_versions for sprint 31
Merge branch 'master' of github.com:openshift/origin-server

* 'master' of github.com:openshift/origin-server:
  <controller> - Return client_message as warning instead of info
Add support to pam enable/disable command to run across all gears.
Merge pull request #3077 from rmillner/cgfixes

Merged by openshift-bot
Automatic commit of package [openshift-origin-cartridge-jbossews] release [0.7.1-1].
Automatic commit of package [rubygem-openshift-origin-msg-broker-mcollective] release [1.12.1-1].
Automatic commit of package [openshift-origin-cartridge-10gen-mms-agent] release [1.26.1-1].
Automatic commit of package [openshift-origin-cartridge-cron] release [1.10.1-1].
Automatic commit of package [rubygem-openshift-origin-node] release [1.12.1-1].
Automatic commit of package [openshift-origin-cartridge-mysql] release [0.6.1-1].
Automatic commit of package [openshift-origin-cartridge-nodejs] release [1.13.1-1].
Automatic commit of package [openshift-origin-cartridge-haproxy] release [0.7.1-1].
Automatic commit of package [openshift-origin-broker-util] release [1.12.1-1].
Automatic commit of package [rubygem-openshift-origin-common] release [1.12.1-1].