oo-accept-node: check allow_polyinstantiation

Check that the allow_polyinstantiation SELinux Boolean is enabled.
Better mail config, allow SMTP to be set by ops
Review comments
Bug 966065: Make python-2.6 install script executable
Merge pull request #2588 from ironcladlou/bz/966065

Merged by openshift-bot
Merge pull request #2592 from smarterclayton/better_mail_config

Merged by openshift-bot
Automatic commit of package [openshift-origin-cartridge-jbossews] release [0.4.5-1].
Automatic commit of package [rubygem-openshift-origin-node] release [1.9.6-1].
Automatic commit of package [openshift-origin-cartridge-mysql] release [0.3.5-1].
Automatic commit of package [openshift-origin-cartridge-nodejs] release [1.10.5-1].
Automatic commit of package [openshift-origin-cartridge-haproxy] release [0.4.5-1].
Automatic commit of package [openshift-origin-broker-util] release [1.9.5-1].
Automatic commit of package [rubygem-openshift-origin-common] release [1.8.5-1].
Automatic commit of package [openshift-origin-cartridge-postgresql] release [0.2.5-1].
Automatic commit of package [openshift-origin-cartridge-jbossas] release [1.2.5-1].
Automatic commit of package [openshift-origin-cartridge-ruby] release [0.4.5-1].
Automatic commit of package [openshift-origin-cartridge-php] release [0.4.5-1].
Automatic commit of package [openshift-origin-cartridge-diy] release [0.4.5-1].
Automatic commit of package [openshift-origin-cartridge-perl] release [0.4.5-1].
Automatic commit of package [openshift-origin-cartridge-python] release [0.4.5-1].