Cashculator 1.1.1 bugfix release

Cashculator version 1.1.1 has several important bug fixes and is recommended to all current Cashculator customers. List of changes:

Fixed possible crash on Leopard - sometimes a crash occurred on 10.5 (Leopard) systems when using short horizons.
Fixed average calculations inconsitency - In some cases average plans were calculated wrong.
Not being able to set an average plan - Fixed a rare case where a plan couldn’t be set to be average.