Log Message:
Update to 20130818. Changes:

+ change cursor-position before IL/DL in
  "Test of VT102-style features with BCE (Insert/Delete Char/Line)"
  to demonstrate whether the terminal sets the cursor to the first
  column as a side-effect, as noted in VT220 reference manual.

+ modify character-sets screens to optionally highlight the characters
  which do not correspond to ISO-8859-1.  This makes the National
  Replacement Characters easier to see.

+ modify DSR cursor-position report to check if the terminal
  accounts for origin-mode.