Re: What is the purpose of tables.allValues()?

[cblake]

A documentation PR seems reasonable. Go for it. If you need to undo multiple 
add calls to `Table` then you should be able loop until you don't find the key 
anymore, but yeah, you don't know what order values for the key will arrive in 
that loop. There's no secondary order discipline like FIFO or anything. If you 
need that you should instead use a `Table[key, seq[valType]]` or `OrderedTable`.