[vsphere] add list_templates function
[vsphere] add get_template function
Vsphere: add options of numCPUs and memoryMB for VM clone
Fog::Model#wait_for: eliminate inner retry loop

AWS frequently takes more than 3 seconds for an instance to appear.
Rather than having the overlapping timeouts for reload and
instance_eval, simply make them both occur with the same timeout.

 + Prevents spurious failures when waiting for AMI
 + Easier to follow flow
[openstack] Retrieve supported API version for Image & Network services
[openstack|compute] Add volume attachment methods
[rackspace] updated getting_started.md to use source 'https://rubygems.org' rather than :rubygems.
[rackspace|compute_v2] added bootstrap and ssh section to compute documentation.
mend
[rackspace] tweaking getting started page
[rackspace] adding note about credentials in the getting started document
[rackspace] revising getting started page
[rackspace|compute_v2] updated the bootstrap section of the compute_v2 documentation.
[digitalocean|compute] initial release

DigitalOcean Compute Service Provider.
See https://www.digitalocean.com/api
[digitalocean|compute] added getting started guide
[digitalocean|compute] Updated server model documentation
[digitalocean|compute] added test helpers
[digitalocean|compute] Implemented Server.reboot

- Added reboot_server request
- Added required tests
[digitalocean|compute] Implement Server.power_cycle

- Added power_cycle_server request
- Added required tests
[digitalocean|compute] tests updates