Updated: doc to CLI
Added: droplets rename action + tests - fix #25
Added: droplets rename to CLI - tests
Updated: doc
Added: images transfert + tests - fix #24
Added: images transfert to CLI + tests
Fixed: typo
Fixed: mock call in images destroy test
Updated: doc
Added: typehint to id variables
Updated: sshkey edit test
Updated: composer.json
Prepare release 1.2.0
Bump version to 1.2.1-dev