Rearrange version(), product_version() and filename_version() parameters #59
Description
At the moment the version(), product_version() and filename_version() condition functions take their parameters in the order file, version, operator, but I always find myself unsure if I interpret that right, so it would be good to replace that with file, operator, version so that you just need to mentally substitute the file with its version to get the operation being performed.
It should be possible to implement support for that order of parameters without affecting support for the current order, so that wouldn't be a backwards-incompatible change, though the current order would be immediately deprecated.