Update CHANGELOG.rdoc
Update CHANGELOG.rdoc
firmanm/impressionist,charlotte-ruby/impressionist,samchen2009/impressionist,guodongme/impressionist,samchen2009/impressionist,charlotte-ruby/impressionist,samchen2009/impressionist,guodongme/impressionist,firmanm/impressionist,firmanm/impressionist,guodongme/impressionist,charlotte-ruby/impressionist