Remove ItemFetchJob::collection() in favor of Item::parentCollection().
Remove ItemFetchJob::collection() in favor of Item::parentCollection().

svn path=/branches/work/akonadi-ports/kdepim/; revision=1021125

lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi