Intuitive IP address management

Jonathan D. Storm 780add316b Update to gioui 0.3.1; fix bugs; clean up 1 rok pred
bin 1ed2c8ab92 Retain bin directory 1 rok pred
cmd 780add316b Update to gioui 0.3.1; fix bugs; clean up 1 rok pred
.gitignore 780add316b Update to gioui 0.3.1; fix bugs; clean up 1 rok pred
LICENSE 0c0ed9a13f Clean-up: simplify/rename/reformat; license 1 rok pred
Makefile 780add316b Update to gioui 0.3.1; fix bugs; clean up 1 rok pred
go.mod 780add316b Update to gioui 0.3.1; fix bugs; clean up 1 rok pred
go.sum 780add316b Update to gioui 0.3.1; fix bugs; clean up 1 rok pred
ipplot.go 780add316b Update to gioui 0.3.1; fix bugs; clean up 1 rok pred
notes.md 0c0ed9a13f Clean-up: simplify/rename/reformat; license 1 rok pred
prefix.go 780add316b Update to gioui 0.3.1; fix bugs; clean up 1 rok pred
prefix_test.go 780add316b Update to gioui 0.3.1; fix bugs; clean up 1 rok pred