This patch adds a compute service to fog setting the stage to model
VMware virtual machines using Fog. The patch adds support for:
rdebug -- fog vsphere
>>> connection = Fog::Compute.new(:provider => :vsphere)
The connection to the VMware API is implemented along with
authentication using an username and password. The connection is not
fully secured with this patch because no validation of the SSL
certificate is implemented.
Raw API requests are working with this patch, but none of the API
requests have associated Fog models or collections.
* When running from command line, rescue the exception, and print the help message
When running fog for the first time with no setup, the missing_exception message
was surrounded above and below with a stack trace, which is not particularly
user-friendly. Since we've rescuing the LoadError only in bin/fog, we know
we don't have to worry about higher level libraries not getting the exception,
since it wouldn't propagate between processes.
Changing LoadError to Fog::Error::LoadError lets us know that this was
an issue on fog's part, rather than some other library we might be
using. Since we inherit from the LoadError class, any higher-level
libraries that were using a rescue based on LoadError will still work.
