added item category (multiple) support#76

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verhage wants to merge 3 commits intomwaterfall:masterfrom

verhage:categories

Commits on May 13, 2013

added item category (multiple) support
Rens Verhage
committed

Commits on May 25, 2013

added categories release in dealloc, decoding and encoding of categories
Rens Verhage
committed
added categories support for atom feeds
Rens Verhage
committed