fixing the answer grading not showing bug in gradings view
change answer.save to answer.specific.save
add result fields to both answer and coding_answer
Merge pull request #216 from wangqiang1208/bugfixing/auto-grader-output

fixing the answer grading not showing bug in gradings view
Merge branch 'development' of github.com:Coursemology/coursemology.org into Deploy