autogenerate README.md from doc.go (goreadme cmd)
remove passing arguements on a mouse click()
make defaults for padding, margin, stretchy, etc
add a checkbox widget
function rename to NewButton()
keep cleaning up toolkit code
fix date. I was somehow in the future
Signed-off-by: Jeff Carr <jcarr@wit.com>
all non binary tree structs are gone (almost all)
Use names from https://en.wikipedia.org/wiki/Graphical_widget
toolkit andlabs/ui is isolated from being accessable
all direct references to andlabs are removed
working dropdown widgets
add debugging more buttons and windows