Merge pull request #8 from kazuichiba/ransack

changed gem file added comments table
removed old comments models and migtrations, fixed error
removed LNF css
Merge pull request #9 from kazuichiba/add_comments

Add comments
fixed things
Merge pull request #10 from kazuichiba/fix_things

fixed things
fixed migrations
changed schema
added comments, edit link, comment link
added image to homepage
cleaned up some html
made changes to task controller, added comments test, dashboard cleanup
added ransack gem to gem file
Merge branch 'master' into ransack

Conflicts:
	Gemfile
added ransack, added a delete button