Primelimit

[Ilya Zakharevich <ilya@math.ohio-state.edu>]

Currently the same number primelimit is used for two unrelated things:
now many primes to keep in the gaps table, and how many primes to use
in calculations related to euler products etc.

How hard would it be to split these limit(s) into two: primelimit and
primecache, with primecache >= primelimit?

Ilya