Server fixes

Fixed initial stutter issue when the server was assuming a different walk/run speed than the client. (the one you could fix by sprinting)

Excluded the usage of equipped items in the following cases:

• exchanging with an NPC as part of a quest, where the NPC asks for a certain item

• in City manager, when providing items to the city

• in crafting when checking for the item prerequisites

• in crafting when executing the preparation (move item into containers)

Fixed crash when disconnecting with a familiar

Fixed issue of items disappearing from guildhouse containers on split stack and inventory full