Add 4.0.60 release notes
Add 4.0.60 release notes

phusion/passenger,phusion/passenger,phusion/passenger,clemensg/passenger,clemensg/passenger,phusion/passenger,clemensg/passenger,clemensg/passenger,clemensg/passenger,clemensg/passenger,phusion/passenger,phusion/passenger,clemensg/passenger,clemensg/passenger,phusion/passenger,phusion/passenger