Combat Usable Items Fundamentally Done

I updated what felt like a hundred places in the code and finally managed to get combat-usable items to appear in the list when setting a particular Ability Hot Button, and then all the connected code to save them to the server, to connect the image to the item type you'd like to use - and finally to connect the click on the button to actually using the item (and giving the right effect to the player, de-incrementing the item from your inventory and so on).

I've got some holiday time up me sleeve, so hope to get a bunch more stuff coded up over the near future. I think it's going to be finally circling back to abilities, and picking up where I left off a few weeks ago (thinking I would come back in a day or two) and continue that aspect.