[KPhotoAlbum] Minor patches

[Johannes Zarl]

Hi list,

While getting familiar with the KPA codebase I eradicated some warnings and 
added code to allow stepping the date in the annotation dialog using the 
mousewheel. 

The Patches (Sorry for this; next time I'll use github...):

0001-Fix-Wreorder-warnings-in-ImageSearchInfo.patch
0002-Allow-stepping-the-date-using-the-mousewheel.patch
-> Please check if this is desirable for KPA; I was already there (see patch 
0003) and it was not much work
0003-Removed-unused-code-for-stepping-date-using-arrow-ke.patch
-> AFAICS the removed code has no side-effects (and is never even executed).
0004-Fix-Wunused-but-set-variable-warnings-in-Exif-dialog.patch
0005-Suppress-Wunused-but-set-variable-warning-for-Thumna.patch
-> is it ok to use gcc type-attributes in KPA?
0006-Fix-trailing-spaces-in-tags.patch
-> fixes http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=496225

Cheers,
  Johannes
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