Removed ground trace from ground plane under CPU to crystal capacitor C11.
Added a ground trace between the 5vdc-cpu trace and the ground pads for C10 and C11.
All decouple capacitors should ONLY connect to the CPU ground pin associated to them, and NOT to the ground plane on the other side C1, C2, C4, C5, C44, C47.
Changed traces for CPU pins 85 and 86 to use isolated vias and traces to jump the 5V trace under the CPU and into the CPU ground plane.
Corrected keepout areas around C1, C2, C5 and C47 so that there are no ground plane thermal relief "fingers" towards the solder pads.
Changed CPU pins 83 and 97 to use vias for the 5vdc-cpu connection back to C4, this allowed the ground plane under the CPU to be correct and now CPU pins 85 and 86 are directly connected to the CPU ground plane.
CPU Pin 40 is now the ONLY ground source for all CPU pins, and is heavily connected with vias to the main ground plane on the back of the PCB.
C48 connected to C3 on the front side as well as the back side.
Moved 5vdc-cpu trace to C48 closer to LSD2 input pin.
Straightened trace from CPU pin 37.
Re-routed IAT trace from CPU pin 67 to D10 to remove the via and the trace on the back of the PCB.
Updated TODO.md with the IAT via removal.