Custom component link moved

This patch contains lots of little updates I want to get out there, but I wanted to give a heads up about the following:

The link from architectures to custom components is now found in the custom component panel. So click on the custom component you want to edit, then click on the wrench in the upper right corner.

(Note it doesn't actually take you to the same schematic as the custom component you clicked on, but it will soon)