Clean up npm-installed packages

cms/static/cms/js/require-config.js

cms/static/cms/js/spec/main.js

cms/static/cms/js/spec/main_squire.js

cms/templates/base.html

common/lib/xmodule/xmodule/js/karma_xmodule.conf.js

common/lib/xmodule/xmodule/js/spec/main_requirejs.js

common/static/common/js/spec/main_requirejs.js

common/static/js/vendor/Squire.js

common/static/js/vendor/Squire.min.js

common/static/js/vendor/moment-with-locales.js

common/static/js/vendor/moment.min.js

common/static/js/vendor/requirejs/require.js

common/static/js/vendor/sinon-1.17.0.js

lms/envs/common.py

lms/static/karma_lms_coffee.conf.js

lms/static/lms/js/require-config.js

lms/static/lms/js/spec/main.js

lms/static/lms/js/spec/main_requirejs_coffee.js

package.json

pavelib/assets.py