Game server/Skill System: Ensured items are being taken after the skill has successfully been casted (with the exception of arrows!). Solves #261
Game server/Skill System: Improvement on the last commit.
Game server/Skill system: Improvments on the improvements. Totally did not derp there.
Game server/skill system: just a comment to indicate why the obscure check's needed.
Game server: CUser::CanUseItem() now (like the other similar item check/use methods) accepts the stack size as an optional parameter (default being 1). Also cleaned up some code for readability.
Merge pull request #1 from twostars/master

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