Prohibit automatic enrollment in prof ed courses when user authenticates via third-party auth
Merge pull request #5722 from edx/renzo/third-party-auth-no-prof-ed-autoenroll

Prohibit automatic enrollment in prof ed courses when user authenticates via third-party auth
Merge remote-tracking branch 'origin/release'
Fix pylint violations
Merge pull request #5735 from edx/will/update-release-10-27

Merge release into master (with changes from Friday 10/24/14)