add .rspec, update Guardfile
move Mutex to Logger
remove spec-live s3 syncer spec
update syncer initialization
storages cycle by default
cloudfiles -> cloud_files
update storage initialization
update configuration shared_examples

- support classes that have required/validated attributes
- support classes with different #initialize arity
update storage shared_examples

- support storages that have required/validated attributes
update `backup_perform` VM spec example helper
CloudIO::S3
CloudIO::CloudFiles
update Storage::S3 to use CloudIO
allow Package to be flagged so Cycler won't remove
update Storage::CloudFiles to use CloudIO
update Cloud Syncers
fix rspec shared_examples warnings

Accessing shared_examples defined across contexts is deprecated.
Please declare shared_examples within a shared context, or at the top level.
remove automatic error class generation
Storage::Dropbox chunk_retries -> max_retries
update dependencies