fixed fruit tree crash, oops!
Added food decay protection that is configurable. As food sits unloaded for longer and longer periods of time, when it finally plays catchup, it now scales the decay ticks causing less decay to occur. Once the player reaches X number of days where X is 18 by default, only 24 hours worth of decay will occur on the food. This change should have next to no effect for SSP players while giving some much needed respite to server players who live alone. Admittedly, this will NOT help  players that live near each other on servers as the ticking will be going in real time. However, as those players will most likely be operating as a community, due to food sharing, the burden should be lessened.