Merge pull request #8724 from Colin-Fredericks/ColinF-partial-credit

common/lib/capa/capa/correctmap.py

common/lib/capa/capa/inputtypes.py

common/lib/capa/capa/responsetypes.py

common/lib/capa/capa/templates/chemicalequationinput.html

common/lib/capa/capa/templates/choicegroup.html

common/lib/capa/capa/templates/choicetext.html

common/lib/capa/capa/templates/crystallography.html

common/lib/capa/capa/templates/designprotein2dinput.html

common/lib/capa/capa/templates/drag_and_drop_input.html

common/lib/capa/capa/templates/editageneinput.html

common/lib/capa/capa/templates/editamolecule.html

common/lib/capa/capa/templates/jsinput.html

common/lib/capa/capa/templates/textline.html

common/lib/capa/capa/templates/vsepr_input.html

common/lib/capa/capa/tests/response_xml_factory.py

common/lib/capa/capa/tests/test_correctmap.py

common/lib/capa/capa/tests/test_responsetypes.py

common/lib/xmodule/xmodule/css/capa/display.scss

common/static/images/partially-correct-icon.png

common/test/acceptance/pages/lms/problem.py