IMGAPI-111 imgadm v2 blows up with "TypeError: Cannot read property 'size' of undefined" on import

Fix a few problems here: handle error in getting file info preparing
for streaming down an image; improve error message handling in imgapi
client.getImageFileStream; only attempt to import *active* images.
IMGAPI-114 imgadm v2 SourcePing error message doesn't give any details
IMGAPI-113 imgadm v2 allows you to specify the same source twice with and without a '/'

Also, limit response body output for a source ping error (IMGAPI-114).
IMGAPI-114 imgadm v2 SourcePing error message doesn't give any details

update to latest imgadm deps
IMGAPI-112 imgadm v2 considers import of already existing image an error
OS-2014 raise timeout in attempt to get VM tests passing.
allows you to specify the ip spice/vnc listens on

use the option "listen-ip": "some.ip" in the vm json

Conflicts:

	src/vm/node_modules/VM.js
adds "allow_ip_conflict" boolean option to nics

This option allows two nics on different zones to have the same ip address.
This is useful if you have zones on different etherstubs or any other creative use case.

Conflicts:

	src/vm/node_modules/VM.js
ipv6 changes

accept CIDR as well as Netmask in error check
mark elysium builds as such