FreeNAS Code

several changes to the treemenu so we can support hook of plugin items

- change attribute of url path to pen from "view" to "url"
- change the gname attribute so it is autogenerated from the position of the tree
- e.g. UPS node under Services is called "services.UPS"
- add a simple method to catch new items from an url (plugin)
- the url must return a JSON array containing nodes for the tree
- the node can be appended anywhere in the tree:
- e.g. "append_to": "services.Rsync.RsyncMod" will append it to Rsync Modules node
- split auto_generate in two
- prepare_modelforms go through all the models and find all related modelforms
- generate actually generate the menu structures to dump as JSON later on

move more form to use the generic_form.html
also fix a path issue in change permissions form

blacklist pflog0 pfsync0 and be careful with broadcast

Create a parent interface for VLAN interface if it's not already exist.

remove js code duplication a bit by using a generic checkbox toggle function

replace remaining JsonResponse

Wildcard and broadcast DNS addresses rejected in the GUI
Also fix some logic looking for filled addresses

Allow configuri ng of vlan parents, this fixes ticket 745

DHCP / static IP info should be mutually exclusive

Use correct name in copyright