restore_from_checkpt
--------------------
Ask the server to load the definition from an check pt file.
The server must be halted and the definition in the server must be deleted
first, otherwise an error is returned
The client reads in the following environment variables. These are read by user and child command
|----------|----------|------------|-------------------------------------------------------------------|
| Name | Type | Required | Description |
|----------|----------|------------|-------------------------------------------------------------------|
| ECF_HOST | <string> | Mandatory* | The host name of the main server. defaults to 'localhost' |
| ECF_PORT | <int> | Mandatory* | The TCP/IP port to call on the server. Must be unique to a server |
| ECF_SSL | <any> | Optional* | Enable encrypted comms with SSL enabled server. |
|----------|----------|------------|-------------------------------------------------------------------|
* The host and port must be specified in order for the client to communicate with the server, this can
be done by setting ECF_HOST, ECF_PORT or by specifying --host=<host> --port=<int> on the command line