Admin server w/smarthost now listens on locakhost

Fixes rcbops-cookbooks/swift-private-cloud#117
Merge pull request #190 from claco/issue-117

Merged automatically by jenkins after successful build test
Fix typo
Merge branch 'master' of https://github.com/rcbops-cookbooks/swift-private-cloud
Merge pull request #191 from willkelly/master

Merged automatically by jenkins after successful build test
document pager_address environment variable
Merge pull request #192 from willkelly/master

Merged automatically by jenkins after successful build test
Remove uused snmp configuration (solves issue 183)

We are not using snmp to monitor our private cloud installations, so
we do not need to install and configure snmp.

* Removed snmp attributes

* removed snmp templates

* removed snmp resources from base.rb

* removed snmp.rb

* UPGRADING.md already updated to document this change.
Install object-expirer on admin box (issue 126)

* Added new recipe and updated controller role

* Fixes issue 126

* Disables proxy-server and object-server on admin node, as these are
  unwanted services but centos and ubuntu package object-expirer with
  them.

* Deletes proxy-server.conf and object-server.conf on admin node to
  keep swift-init from starting these unwanted services.
Merge branch 'issue183' of github.com:willkelly/swift-private-cloud into issue183
Merge pull request #193 from willkelly/issue126

Merged automatically by jenkins after successful build test
Merge pull request #194 from willkelly/issue183

Remove unused snmp configuration (solves issue 183)