File.join -> PathUtils.join

Convert File.join to PathUtils.join in the vhost plugin
Add logging about idling/unidling in vhost plugin

Add logging about idling/unidling in the vhost plugin. Attempting to
determine what's going on with bug 1161165.
Merge pull request #5943 from ncdc/stage-bug/1161165-missing-idler-conf

Merged by openshift-bot
Fix calls to config

Conflicts:
	node-util/sbin/oo-admin-gear
Bug 1162096 - Fix oo-admin-gear destroygear

Conflicts:
	node-util/sbin/oo-admin-gear
Bug 1161263 - Support class method truncate()

Conflicts:
	plugins/frontend/apache-vhost/lib/openshift/runtime/frontend/http/plugins/apache-vhost.rb
Bug 1161263 - Support class method truncate()

Conflicts:
	plugins/frontend/apache-vhost/lib/openshift/runtime/frontend/http/plugins/apache-vhost.rb