LMS i18n from Tsinghua
Remove news carousel and other unused pages

Remove unused course_filter page

removes university_profile urls and templates

removes all university_profile views

remove news from templates/index
replace edx with variable substitution

fixes template errors

keep tos untranslated

formatting fixes
Merge pull request #433 from edx/tsinghuax/lms-i18n

Tsinghuax/lms i18n