Extensions to permit template graders to return raw html for the 'got' and 'expected' columns of the results table.
Document the extension to permit template graders to return raw html for the 'got' and 'expected' columns of the results table.
Use 'pre' tags for syntax error display so indentation is preserved.
Add a combinator-template grader.
Merge branch 'development'

(new CombinatorTemplateGrader).