[KPhotoAlbum] Speeding up annotation

[Tobias Leupold]

> Right now the code's a hodgepods, with 160 Q_FOREACH and about 100
> (two different regexps yielded 102 and 103 respectively) for ( : )
> loops.  I agree that we want to fix that; the question is do we want
> to do it piecemeal or in one shot.

You're right, this should be fixed in one commit. Actually, that's a job 
for me, one does not have to be a C++ pro to fix this ;-) I'll take care of 
this one.