Many Fixes - Custom Media Happy

I had about ten items on my urgent list for today, and defeated all but one which I am likely to solve this evening as it's the zero rag-doll animation death issue which should be pretty simple to deal with, but in the main I am happy with the fixes including a serious one which prevented certain entities from the store from rendering properly, including off the shelf stuff as seen below.

I also started work on the Character Kit, which is a very simple tool which will allow you to assemble unique characters for your level, and although the first version will only contain a few bodies, heads and texture variations, it will be designed to be expandable both from the store and from your own custom contributions.