Changes To Oasis_Ed

V1.2  Bugs fixed:-
          Repeating line at base of window - fixed.
          Carriage return not carried out on last line of window - fixed.
          When line is greater than 80 characters line did not scroll when more 
                  text was added - fixed.
          Keypress of characters below ASCII 32 accepted - fixed.
          Deletion of block moved line to start of deleted block - fixed.
          When line exceded 80 characters last character was not displayed
                  - fixed.
          Error alert only displayed errors sometimes - fixed.
          File stated change even after unacceptable keypresses - fixed.
          Scrolling up & down corrupted display of highlighted block - fixed.
          Help function did not state shift left & right arrow feature - fixed.
          About dialog displayed text in black on black background in mono 
                  resolutions - fixed.
          When selecting New or Open a form requesting abandon yes/no  
                  was always displayed - fixed.
          Block cursor could vanish under certain circumstances - fixed.

      Additional Functions:-
          Move block function added.
          Reformat is now accessed by Function Key 10 and is no longer tied to 
                  block commands.
          Insert/Overwrite function added.
          Insert line function in word wrap now added available in preferences.
 
