Version 1.2c
- added a Psion-V command, to see recorded values in a window
  (movable, 2 positions)
- changed format for display of dates

Version 1.2a
- improved algorithm for the automatic calculation of limits and
  scale on the y-scale
- changed the registration process
- added options to the "import from text file" command. It is now
  possible to update a set of different graphs from one single txt
  file, like the quotes.cis file produced by ReadCis.