[cli] Create dev release defaults to final name
Merge branch 'dev_name' into develop

Signed-off-by: Maria Shaldibina <mariash@pivotallabs.com>

Conflicts:
	bosh_cli/spec/unit/commands/release_spec.rb
Refactor create release unit tests

Signed-off-by: Maria Shaldibina <mariash@pivotallabs.com>