Merge pull request #4913 from edx/andya/handle-component-errors

.jshintrc

cms/static/js/spec/views/modals/edit_xblock_spec.js

cms/static/js/spec/views/pages/container_spec.js

cms/static/js/views/modals/edit_xblock.js

cms/static/js/views/pages/container.js

cms/static/js/views/xblock.js

...s/js/mock/mock-bad-javascript-container-xblock.underscore

...lates/js/mock/mock-bad-xblock-container-xblock.underscore

cms/templates/js/mock/mock-container-xblock.underscore

...s/js/mock/mock-xmodule-editor-with-custom-tabs.underscore

cms/templates/js/mock/mock-xmodule-editor.underscore

common/test/acceptance/pages/studio/container.py

common/test/acceptance/tests/test_studio_bad_data.py