complete answers sort and fix bug(any user can delete answer)
Merge branch 'development' of https://github.com/jameszhan/ask-ruby into development
Merge branch 'development' into answers-sort
Merge branch 'development' of https://github.com/jameszhan/ask-ruby into development
Merge branch 'development' into answers-sort
Merge pull request #22 from jameszhan/answers-sort

Answers sort