ch_add

ch_add
------

Add a set of suites, to an existing handle.
   arg1 = handle(integer)  # The handle must be an integer that is > 0
   arg2 = names            # should be a list of suite names, names not in the definition are ignored
Usage:
   --ch_add=10 s2 s3 s4    # add suites s2 s3,s4 to  handle 10
An error is returned if the handle had not previously been registered
The handle is created with --ch_register command
To list all suites and handles use --ch_suites

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