Two new 'setmod' properties

  1) You can now 'setmod READER 1' to indicate that you are visually impaired 
  and employ a screen reader.  This isn't actually used anywhere to start, 
  but as you come across places using cool ASCII graphics that are useless to 
  your screen reader, you can request that this property be checked and the 
  information presented in a less-decorative way. 
 
  2) You can setmod SHOWALTS to declare your alt chars (or some subset of 
  them if you want to have some open and some not) public information, and 
  then 'finger' can show them. 
 
  Enjoy!