Merge branch 'www0' of https://github.com/EduPepperPDTesting/pepper2013-testing into www0
Merge branch 'www0' of https://github.com/EduPepperPDTesting/pepper2013-testing into www0
modify lms links for preview and 'view live' courses and subsections
modify view live and preview course,subsection links,add ip method
Bug fix
Merge branch 'www0' of https://github.com/EduPepperPDTesting/pepper2013-testing into www0
Merge branch 'www0' into wangxin
Bug fix
merge victor
Merge branch 'wangxin' into www0
modify links
modify links:in production server
Bug fix
Bug fix
Bug fix
According to the user to hide the navigation buttons, portfolio-My coursework bug fixes