portfolio (My discussion)
portfolio(about me template)
Merge branch 'star' into www0
modify: complete course

student's grades greater than or equal 85 percent,complete course
Merge branch 'www0' of https://github.com/EduPepperPDTesting/pepper2013-testing into star
portfolio - My discussion (static pages, increase the child, you can reply), My courseWork (static pages)
portfolio - page css modification
add download certificate pdf function
delete couse discussion username link
Merge branch 'lvzh' into www0
Merge branch 'victor' into www0
Merge branch 'star' into www0
Add couse discussion information page, modify the portfolio - My coursework \ My discussions static pages
Bug fix
Fix: people dashboard courses, got worng complete status.
Modify: access resource library.
Merge branch 'star' into www0
Modify: access_resource_library
ORA modify a bug, updating portfolio images and css
show certificate in browser