Create task model
Add comment model validation and relation
Add comments controller spec
Modify comment model body column
Upgrade Gemfile for heroku
rake assets:precompile
Delete Gemfile for gem of heroku
Add Gemfile for heroku
Modify validates comment model
Set environment/production
Set flatly js and css
rake assets:precompile
config.assets.compile = true
Create comment form
Add comment form error messages
Add feature of destroy comments
Merge pull request #5 from ahkr/feature_comment

Feature comment