* set the relevance of the exact match to 1
* match the Name case insensitively so that we filter out Okular when "okular" is entered
* avoid duplicating storageIds or exec's we've alread listed
* clean up the includes

end result: "oku" now returns exactly two matches on my system: okular and ksodoku. perfect! (previously i was getting half a dozen or so okular entries)