Acore-server

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**Features and Improvements**

- add ``acore_config.config.define.server.Server.acore_db_app_version`` config field.

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**Bugfixes**

- fix a bug when "check=True", we didn't use the object representing the latest ec2 or rds metadata.

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**Minor Improvements**

- ``acore_server_metadata.api.Server.run_rds`` now also copy ``tech:master_password_digest`` tag from snapshot to RDS instance.

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**Minor Improvements**

- ``acore_server_metadata.api.Server.run_ec2`` and ``acore_server_metadata.api.Server.run_rds`` now receive additional kwargs. The ``allocated_storage`` is no longer mandatory.

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**Miscellaneous**

- upgrade dependencies, no API changes.
- improve internal implementation.

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**Features and Improvements**

- merge the following config field from ``wserver_fleet_manager`` project:
- ``acore_config.config.define.server.Server.ec2_ami_id``
- ``acore_config.config.define.server.Server.ec2_instance_type``
- ``acore_config.config.define.server.Server.ec2_subnet_id``
- ``acore_config.config.define.server.Server.ec2_key_name``
- ``acore_config.config.define.server.Server.ec2_eip_allocation_id``
- ``acore_config.config.define.server.Server.acore_soap_app_version``
- ``acore_config.config.define.server.Server.acore_server_bootstrap_version``
- ``acore_config.config.define.server.Server.db_snapshot_id``
- ``acore_config.config.define.server.Server.db_instance_class``
- ``acore_config.config.define.server.Server.lifecycle``