added some validation stuff
Merge branch 'master' of github.com:kronosapiens/xp
basic comments on lessons working
cleaned up comment section
more efficient get of user info when displaying comments, plus displays created_at timestamp
validations and warning message when blank comment is submitted.
if user tried to leave a comment without logged in, they are taken to github to login
anyone can delete anyone's comments
ready to test users other than you being able to delete your comments
ready to test users other than you being able to delete your comments STILL
merge with comments
tweaked css on show page