One string is unicode
One string is unicode
Revert "One string is unicode"

This reverts commit d7c2ad495dba0af2085ba2d675f392cc5ba7cc38.
Fixed which exception a docstring talks about
Changed some docstrings from mentioning KeyErrors to ConfigurationErrors
Test for and improve error message on missing application key
Verify that applications config has a version specified
Verify that deployment config has a version specified
More complete example configurations and explanations
Fixed mixed up deployment/application configs
Use more realistic hostname in test
Use an example domain
Valid YAML in example
Removed commas
Made YAML string literals and removed hyphens
Version is int not string
Version is int not string
Merge pull request #232 from ClusterHQ/model-from-config-203

Implement model_from_config and use it in DeployOptions
Merge remote-tracking branch 'origin/master' into configure-ssh-221