[dhcp] add netmask support
Merge branch 'master' of github.com:rlex/puppet-dnsmasq

* 'master' of github.com:rlex/puppet-dnsmasq:
  [Modulefile] release 1.1.2
  [docs] fix errors in changelog and update readme
  [dhcp] add netmask for dhcp server
  [release] 1.1.1
  [core] add support for dnsmasq.d config folder
  [README] update with new options
  [dnsmasq] add cache-size as requested in #2