Add font-awesome
Add "SPEAKERS"
Add a class ".listMarkWhite"
Add a summary to the home
Add new section for ruby committers
Add Speakers List
Fix the layout of the summary and the feature
Replace  HTML commnets with HAML commnets
Remove "Confirmed"
User default image when the icon does not found on gravatar
shyouhei
Merge branch 'add-speakers'

Conflicts:
	app/assets/stylesheets/common.scss