Migrate all dependencies to NPM

.gitignore

course/templates/course/gradebook-by-opp.html

course/templates/course/gradebook-opp-list.html

course/templates/course/gradebook-participant.html

course/templates/course/gradebook.html

course/templates/course/participation-table.html

course/templatetags/coursetags.py

doc/misc.rst

package.json

relate/settings.py

relate/templates/base.html

relate/templates/datatables-header.html

relate/utils.py

requirements.txt

setup.py

tests/test_misc.py

yarn.lock