Alpha

First working version.
Has the following features:

• Custom bed size: so you can enter the actual dimensions of your bed
• Padding from edges: So that you can account for probe size / dead zones
• Custom G-code sender
• X/Y Probe points count (currently identical for x and y): so you can pick how many probe points there are.
• Bed saving and loading: for comparisons
• Bed map visualization: Not the best, but works pretty nicely

Windows only right now, but not forever!

Built on electron (NodeJS + webkit), so should be pretty easy for people to contribute!