Add a shade launch-node

Created as a new script so that we aren't hosed if this doesn't
work with current providers.

Change-Id: Ia8d35d0acbfb773ca710c9383d9b746e786766bc
Depends-On: I26bc94408441edf067493b7ffd50eebd9dd95e75

launch/utils.py

@@ -115,6 +115,8 @@ def get_public_ip(server, version=4, floating_ip_pool=None):
 
 
 def get_href(server):
+    if not hasattr(server, 'links'):
+        return None
     for link in server.links:
         if link['rel'] == 'self':
             return link['href']