adding console community helper parameters in /etc/openshift/console.conf

We add few changes to console configuration system. We wanted  more parameters in the configuration file /etc/openshift/console.conf.

Currently, some variables are defined in console/app/helpers/console/community_helper.rb. We’d like it to be exported in /etc/openshift/console.conf.

So we add parameters in /etc/openshift/console.conf and overload console/lib/console/configuration.rb (in the source) to support new parameters. Then, openshift files (such as community_helper.rb) which use this parameter should get it by calling 'Console.config.parameter'.