Merge pull request #231 from cloudedge/pull-req-master-ee99a890a1474d496e875d6d9a09f7959a992687

https://github.com/crowbar/barclamp-network/pull/231

Merged by devtool for VictorLowther
Fix on_proposed to handle networks that don't have ranges.

It is permissible to declare networks without ranges if you just want
IPv6 address auto allocation to handle assigning addresses.
Merge pull request #233 from VictorLowther/pull-req-master-813ddc976a035cc6cb8e2f84507fac132aba7c83

https://github.com/crowbar/barclamp-network/pull/233

Merged by devtool for cloudedge
limit deployments to pulldown instead of text box