Make it possible to add processes one by one
Make it possible to add processes one by one

This fixes a old silent bug that was created by
395036ae332c56800481459fef9f1691a484de9f

This commit makes it possible define single process again like:
collectd::plugin::processes::process { 'collectd' : }
Without also having to create:
class { 'collectd::plugin::processes':
  processes => [ 'foo', 'bar' }

This fixes the issues #652 and #595.

voxpupuli/puppet-collectd,juniorsysadmin/puppet-collectd,voxpupuli/puppet-collectd,voxpupuli/puppet-collectd,archii/puppet-collectd,archii/puppet-collectd,juniorsysadmin/puppet-collectd,archii/puppet-collectd