Command: lower
  
Syntax: 
  x2 = lower(x1)
  
Description: 
  Convert an atom or sequence to lower case.
  
Example: 
     s = lower("Euphoria")
       -- s is "euphoria"
       
       a = lower('B')
       -- a is 'b'
       
       s = lower({"Euphoria", "Programming"})
       -- s is {"euphoria", "programming"}
 
See Also: 
  upper
  
