Merge remote-tracking branch 'origin/master' into dormsbee/multicourse

Conflicts:
	cms/djangoapps/contentstore/management/commands/import.py
	cms/djangoapps/contentstore/views.py
	cms/envs/common.py
	cms/envs/dev.py
	cms/envs/test.py
	cms/static/sass/README.txt
	cms/static/sass/_base.scss
	cms/static/sass/_calendar.scss
	cms/static/sass/base-style.scss
	cms/templates/base.html
	cms/templates/index.html
	cms/templates/widgets/header.html
	cms/templates/widgets/module-dropdown.html
	cms/templates/widgets/navigation.html
	cms/templates/widgets/problem-edit.html
	cms/urls.py
	common/djangoapps/pipeline_mako/__init__.py
	common/djangoapps/util/views.py
	common/lib/capa/capa_problem.py
	common/lib/capa/templates/textinput_dynamath.html
	common/lib/mitxmako/middleware.py
	common/lib/mitxmako/shortcuts.py
	common/lib/mitxmako/template.py
	common/lib/xmodule/capa_module.py
	common/lib/xmodule/seq_module.py
	common/lib/xmodule/setup.py
	common/lib/xmodule/test_files/symbolicresponse.xml
	common/lib/xmodule/test_files/test_files/symbolicresponse.xml
	common/lib/xmodule/tests/__init__.py
	common/lib/xmodule/tests/test_files/symbolicresponse.xml
	common/lib/xmodule/vertical_module.py
	common/lib/xmodule/video_module.py
	common/lib/xmodule/x_module.py
	lms/djangoapps/courseware/content_parser.py
	lms/djangoapps/courseware/grades.py
	lms/djangoapps/courseware/module_render.py
	lms/djangoapps/courseware/views.py
	lms/static/coffee/spec/helper.coffee
	lms/static/coffee/spec/modules/video/video_player_spec.coffee
	lms/static/coffee/spec/modules/video/video_volume_control_spec.coffee
	lms/static/coffee/src/modules/problem.coffee
	lms/static/coffee/src/modules/sequence.coffee
	lms/static/coffee/src/modules/video/video_player.coffee
	lms/static/coffee/src/modules/video/video_volume_control.coffee
	lms/static/js/vendor/jquery-1.6.2.min.js
	lms/static/js/vendor/jquery-ui-1.8.16.custom.min.js
	lms/static/sass/application.scss
	lms/static/sass/courseware/_sequence-nav.scss
	lms/static/sass/courseware/_video.scss
	lms/templates/main.html
	lms/urls.py
	rakefile
	requirements.txt