Restore BasePage refactoring in group_configurations.js.
Escape xblock model field in string editor

Also add standalone spec

STUD-1984
Merge pull request #4468 from edx/dan-f/support-quotes-in-string-field-editor

Support single and double quotes in xblock string field editor
Adds more comprehensive bokchoy testing for publishing changes
Work around for JQuery sortable bug (placeholder smaller than component).

STUD-1967
Edit section/subsection release dates and grading types.
Move new method to course_outline view.
Refresh page on save.
Save due and format.
Properly display Month number in date display.
Move isEditable to xblock outline.
Pass grade values to grondend correctly.
Fix typo.
Set graded property correctly.
Change grade saving to go usual path.
Do ot display Delete Release date for Sections.
Uncomment check for permissions.
Initial bok_choy tests.
Switch modal title according to xblockInfo's category.
Studio: adding styling support for section/subsection settings modal UI:
* revising mark up/semantics for modal form UI
* refactoring and revising styling for modal form UI
* adding basic modal content support styling
* changing section/subsection modal window size to 'large'
* converting subsection grading type selection UI to native select element