decode_unile

# File lib/rexml/encodings/UNILE.rb, line 18
    def decode_unile(str)
      array_enc=str.unpack('C*')
      array_utf8 = []
      0.step(array_enc.size-1, 2){|i| 
        array_utf8 << (array_enc.at(i) + array_enc.at(i+1)*0x100)
      }
      array_utf8.pack('U*')
    end