added javascript appear/disappear for 'add answer' textarea
refactored one line of code on questions controller
added placeholder text for 'add answer' textarea
added date to each answer
added javscript for new comment form
added 'add new comment' function to questions show page
refactored comments controller.rb
commented out questions validation in order to add edit question function
only question author can edit question
deleted puts tests
added before_filters to private methods in questions controller
Merge pull request #45 from Rleahy22/questions

4 commits- see descriptions