补充更多的集成测试用例

[bbklab]

based on #797 , 补充更多的集成测试用例, 包括异常情况的测试用例

• 基础的应用发布，删除，升级，回滚，扩缩 basic Integration test #822
• 基础的编排发布，删除 basic integration test cases for compose #841
• 发布异常的编排的删除 bugfix for removing abnormal compose #880
• 发应用时的非法校验 more validations & integration tests #876
• 灰度发布，权重修改 more ci test for canary update #883 add ci test for weights update #885
• 应用管理过程中节点上dns/proxy记录的变更 add integration test for proxy and dns records on app management #891
• 编排管理过程中节点上dns/proxy记录的变更
• IPAM 测试 [WIP] add integration test for ipam #898
• 异常终止的重试恢复
• 新版本编排（use idiomatic yaml format to refactor the compose api #894）的测试用例
• 各种网络模式下( bugfix on get ip & port in host or user defined network mode #901) Task的端口，IP
• 验证每个task对应节点上的 docker container test cases to verify docker container info for each task #926
• explicit set task environment variables regardless of whether the cmd is empty or not #915
• use the mesos slave id as swan agent id #921
• 匹配不到节点或资源超限时发应用 fix the mess of launch tasks logic #930
• 更多...

close #511