Using the quick_equip() verb will no longer make you drop your item. It will also stop udpdating all your HUD, instead, it will only update the overlay of your active hand. All other HUD and overlay updates are already handled on the item movements.
If there's no slot available it will show the "You are unable to equip that" message.
Fixes #713
Merge pull request #900 from Aranclanos/QuickEquipDroppings

Quick_equip() dropping items fix.