Merge branch 'develop'

CHANGES.md

Vagrantfile

doc/tutorials/single-node-email.md

platform.rb

provider_base/common.json

puppet/modules/couchdb

puppet/modules/leap_mx/manifests/init.pp

puppet/modules/site_apt/manifests/preferences/passenger.pp

...k_mk/files/agent/local_checks/couchdb/leap_couch_stats.sh

...et/modules/site_check_mk/files/agent/logwatch/openvpn.cfg

puppet/modules/site_check_mk/manifests/agent/tapicero.pp

puppet/modules/site_check_mk/manifests/server.pp

puppet/modules/site_config/manifests/caching_resolver.pp

puppet/modules/site_config/manifests/dhclient.pp

puppet/modules/site_config/manifests/packages/base.pp

puppet/modules/site_config/manifests/remove_files.pp

puppet/modules/site_couchdb/manifests/bigcouch.pp

puppet/modules/site_couchdb/manifests/create_dbs.pp

puppet/modules/site_couchdb/manifests/init.pp

puppet/modules/site_couchdb/manifests/master.pp