add some comments

add some comments
Removed resume/pause and added other things

Checkboxes to handle 3 different robots (for now)
Next, will add a single button for start & stop (text for "running…" vs
"stopped" will show the current status below the button).
A couple other small changes
different buttons

different buttons
Merge branch 'John'
Merge branch 'Cole'
Merge branch 'master' into Cole