Moved node[nginx][passenger] attributes to nginx/attributes/passenger.rb
Fixed copyright notices

Added copyright notices as per http://tickets.opscode.com/browse/COOK-2738?focusedCommentId=36029&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-36029
Merge pull request #106 from dergachev/COOK-2738

Moved node[nginx][passenger] attributes to nginx/attributes/passenger.rb