
CREATEV
   Usage: "createv <varname> <vartype> <format> <value> [strlen]"
   A web variable that can be referenced within web files is created.  
   * <varname> is the name of the variable
   * <vartype> is the type of the variable (INT8, INT16, INT32, 
     FLOAT32, or STRING)
   * <format> is the printf-style format specifier for outputting 
     the variable (such as "%d")
   * <value> is the value to assign the variable.  
   * [strlen] is only used if the variable is of type STRING.  
     It is used to give the maximum length of the string.
