prepare for 'snaking'. Make interface more standard buffer like
introduce cursor (wraps up active point now)
move dropToTail into cursor
... not so nice. but well, let's move on to the snake impl
perhaps like this
looking smoother
bien bueno
snake API
try to expand snake; run into new bug. that's why you shouldn't trust test runs..... occurs with |symbols| << |corpus|. reduced to small tree which fails in test.
look more into it; bug reproducible with v0.0.1; perhaps should enable the tails()== assertion in append-finish?
der naechste bitte
think
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passes (had to put the addLink back at the end of add1)
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