Bump the Ruby version to 2.0.0-p481

The Ruby version 2.0.0-p451 cannot be built on newer systems which use
readline-6.3 due to bug #9578. The Ruby version 2.0.0-p481 has the fix.
Allow getting credentials from environment variables

The API and secret keys can now be passed through environment
variables CLOUDSTACK_API_KEY and CLOUDSTACK_SECRET_KEY. This
omits the need to store these keys in the Vagrantfile reducing
the risk of accidentally disclosing them.
Merge pull request #37 from petrhosek/bump-ruby-to-latest

Bump the Ruby version to 2.0.0-p481
Merge pull request #38 from petrhosek/allow-getting-credentials-from-environment-variables

Allow getting credentials from environment variables
Bump version to 0.6.0

* Bump the Ruby version to 2.0.0-p481
* The API and secret keys can now be passed through environment
  variables CLOUDSTACK_API_KEY and CLOUDSTACK_SECRET_KEY.
Fix the codeclimate link (epic contribution :) )
Merge pull request #42 from sergeyevstifeev/patch-1

Fix the codeclimate link (epic contribution :) )
Change default scheme for provider.

This is a possibly breaking change as it changes the resolution order
of how we decide what scheme to use when we connect to the provider.

Earlier we picked http if no scheme was provided in the Vagrantfile,
thus overriding any setting in the .fog file or the defaults in the provider.

With this change, we can specify a scheme in the Vagrantfile, the .fog file or
use the providers default as a fallback.
Bump version.
Merge pull request #45 from lndbrg/change-default-scheme

Change default scheme
Remove reference to unused config item.
Remove duplicate assignment.
Re-indentation of file. No functional difference.
Add methods for translating between name and UUID.
Initial support for specifying network name.

This commit adds support for specyfiying the network with name
instead of using UUID. The UUID is still supported and will be
used if both are specified.

We always try to translate between name and UUID for the user
experience.
Create a more generic translation method.

This is needed because different parts of the api take different
parameters that does almost the same thing. (Yes the cloudstack api
both suck and blows at the same time).
Add initial support for specifying zone by name.
Add initial support for specifying SO by name.
Add initial support for specifying template by name.
Add todo about project support in fog.