added floatingip
added associate_floatingip and disassosiate_floatingip mock test
update associate_floatingip for real
deleted update_floatingip and changed variable name from floating_network_id to floatingip_id.
fixed disassociate_floatingip bug and update floatingip-* mock values.
updated for ruby naming conventions.
deleted old files eg. floatingip.rb
[rackspace|compute] added attach_volume method to server; cleaned up attachment model
Merge branch 'master' of github.com:fog/fog into volume_actions
[core] Fix service instance variable being included when doing
model.to_json
Merge pull request #1460 from pmdeazeta/FOG-1459

[core] Fix service instance variable being included when doing model.to_json
[rackspace|compute] made device an optional parameter in attach_volume method and request; split volume_attach and attachments into two different tests
Merge pull request #1458 from westonplatter/master

[docs::aws::storage] more requests changing Rdoc to YARD format
Merge branch 'master' of github.com:fog/fog into volume_actions
Merge pull request #1457 from rackspace/volume_actions

[rackspace|compute] cleaned up attachment model
list all VMs in nested folders
Merge pull request #1396 from kanetann/master

added floatingip methods to Fog::OpenStack::Network
Merge pull request #1464 from tmandke/get_nested_vms

vSphere list all VMs in nested folders
[docs::aws::storage] requests changed Rdoc to YARD