Last changes for new release
Updated splash images for new year
Fixed an issue in implementation of #402 Solution could not cope with numerical vectors
Fixed an issue in implementation of ticket #428 The internal and displayed results are now identical.
Fixed issues #402 #403 "'valtostr()' cannot handle data sets" "If used in a string expression, index vectors seem to not work correctly"
Fixed an issue in revision r438 done for ticket #401
Fixed issue #428 "Recursive expressions are not possible in string/numerical mixtures"
Fixed issue #427 "Install sections cannot be executed"
Fixed issue #426 "A single suppressed line in a IF masks all following lines"
Prototypic implementation of string function