consolidate cloud66 files into config folder

make .cloud66 folder into a symlink since its needed

re: http://help.cloud66.com/stack-features/manifest-files.html
remove production.rb from cloud66 copied files

the smtp settings and such have moved to the Global settings class and
no longer need env variable from this

re b312b4d563da4f31310ea0e9ea97e17c360efa29
make deploy hook use unicorn

must have gotten merged over on accident