Update st2_dependencies.pp with manage_postgresql flag
Update st2_dependencies.pp with manage_postgresql flag

https://github.com/StackStorm/puppet-st2/pull/53 :sigh:
lattwood/st2workroom,StackStorm/st2workroom,lattwood/st2workroom,lattwood/st2workroom,StackStorm/st2workroom,StackStorm/st2workroom