Milled LCD slots

[charlespax]

In the most recent batch of PCBs the LCD clip slots had rounded corners of a much larger radius than before. This interferes with the clip slightly. We'll have to file the corners by hand. The slot was also plated this time. previously, it was not.

Let's learn exactly how to call this out in the schematic to have the board house make a consistent product.

The next revision should have a square outline layer in the slot area.