Gridworld V1.13 — Gridworld Steam update #1159832

I am please to announce Gridworld v1.13. It contains all fixes of v1.12 which I had to recall, plus a few extra fixes and additions. Unfortunately, saved world and creatures from older versions will no longer work, but exported creatures still work fine. - Memory has been optimized for lower use of memory and smaller file sizes. This should also reduce the chance of crashes or eliminate them for users who have experienced random crashes. - Crashes on saving or loading should be fixed. - Slider values can now be changed manually by typing. Just click on the value and then type the value. - Added a short description for each neuron type in the neuron property windows. - Clicking on neuron count in the microscope window will now open the neuron property window. - Changed the default colors of the UI. Thanks Faker for the suggested colors. - Fixed bug in which carcasses could replace other o...