first attempt at vdc network creation request - post_org_vdc_network.rb
add code to handle ipranges via optiosn
add new post_org_vdc_network request method to compute.rb
bugfix -- Add 'name' to arguments; improve options docs and handling
bugfix: correct request url -- missing 'admin'
adding get_org_vdc_networks request handler
add get_org_vdc_networks to compute.rb
Speculative add of delete_org_vdc_network

-- not documented in API, but we sort of need it :(
whoops - missed adding delete_org_vdc_network  to compute.rb
update documentation