Adding postfix cookbook.
Switch out postfix config files with the default ones from RHEL6. Also add some configuration to redirect all mail to a gmail account to prevent real outgoing mail on the cttsdev and cttstest servers.
Allow e-mail to be sent to some developers on the cttsdev machine. Apparently we can't send to gmail.com from inside the firewall, so remove our gmail copy on cttsdev.
Remove extraneous metadata.json files from subversion.
Merge branch 'master' of old/postfix into legacy

Conflicts:
	attributes/default.rb
	recipes/default.rb
	templates/default/main.cf.erb
	templates/default/master.cf.erb
Merge branch 'legacy'

Conflicts:
	attributes/default.rb
	recipes/default.rb
	templates/default/main.cf.erb