Overview of changes in gcalctool 5.24.2

    * Re-enable trigonometric types which have been disabled since 2.24.0 (Robert Ancell, Bug #559575)

    * Remember setting to ignore change mode warning between instances (Robert Ancell, Bug #556407)

    * Always read configuration from /apps/gcalctool not /apps/(appname) as
      the application name is different when symlinked (Matt Keenan, Bug #559260).
      
    * Open help with gtk_show_uri() (Thomas Andersen, Bug #556207).
    
    * Removed double conversion in boolean and 32 bit and 16 bit mask operations so
      they can handle larger numbers (Robert Ancell, Bug #509988)
    
    * Updated translations: et (Ivar Smolin), pt_BR (Leonardo Ferreira Fontenelle), uk (Maxim Dziumanenko).