name resolution issue: quick fix to name number limit

[LunaSare]

If a list of names is too long, we could divide it in smaller chunks and call the service several times. Like that we won't choke it. I did this for some datelife functions, see issue phylotastic/datelife#39

Do this with the name retrieval services (not possible for trees). Divide input list into N sets of up to 1000, then loop from 1 to N, getting the names 1000 at a time.