Fix priority of cloud correctly
Modify ami's id for packer used in us-east-1.
Merge branch 'hotfix/modify_ami_image_for_us_east' into develop
Merge branch 'hotfix/clouds-priority' into develop

Conflicts:
	CHANGELOG.md
Add the settings required to spec
Add record spec
Add spec for fixed priority of cloud correctly
Correspond to changed AMI id
Add input spec
Add connection spec
Add output spec
Add cloud spec
Add pattern spec
Add system spec
Add application spec
Remove unnecessary setting
Add spec of Base module
Fix target name in describe
Organize require to spec_helper
Merge branch 'feature/add-spec' into develop