[Development] \until

[Ulf Hermann]

The idea is great. But ...

The changes from Qt4 to Qt5 are actually among the most interesting 
ones. So, rather than comparing on a file-by-file base, wouldn't it be 
better to first index the documentation by function signatures and then 
compare on a function-by-function base? That would also handle cases of 
functions getting moved to a different file in between Qt5 releases.

Ulf