add and delete some images
add font Nunito-Regular for certificate
add word document for course_credit
we don't want this commit
Revert "we don't want this commit"

This reverts commit 889c2925207cad3cdd3ddb9b01722679e70f311a.
Modify: access_resource_library link
Merge branch 'victor' into www0
Merge branch 'lvzh' into www0
Merge branch 'lvzh' into www0
Modify: change link of access_resource_library
change link of help button on navigation
Page jumps to Login when cache is cleaned from History Browser
modify lms links for preview and view live
modify lms link for preview and view live unit
gunicron
change content, add new word and pdf document
gather staticfiles
Merge branch 'www0' into victor
Prepare for gunicron
Modify: contact us email