This command sets the health of clients. 


'''Parameters:'''
 * 1 long botid. This specifies the client whose health should be modified. A -1 in this field indicates that the command should affect all clients' health.
 * 1 int newhealth, the new health value.

'''Responds:'''
 * TBD

'''Reports:'''
 * TBD

'''Example:'''
 * User sends: "sh 1 100"
 * Bot reply TBD
 * User sends: "sh 4 30"