v0.0.7

Refactored prepare_instance & create_snapshot in Command
Refactored opts_setup & smtp setup in Mail
Added tests to the suite.
Fixed refactoring bugs.
Added timeout feature for bad requests or loops.
Added description for the feature timeout.
CodeClimate badge.
Prepared for travis.
Hide 2 bad tests. TODO later.
Added build, coverall badges.
Added rubocop dev dependency.
Fixed rubocop messages.
Added utf-8 to top of all *.rb.
Refactored main class.
Refactored class Command.
Refactored class CLI.
Added Description for Exceptions.
Added Log messages inside some useful exceptions.
Created: Class API to provide DigitalOcean request independent from Class Command.
Classes Log & Mail also organized as single files.
Most of classes used as Singletons, except CLI & API.
Edited all rubocop errors.
Prepared for tests & Travis.
Added ctrl+c exit Signal into binary.
Temp dir for Travis. Independent log dir.
Compatibility update.