- Fix case where the initial chunk length was 0 was not handled correctly.

- Fix bucket lifetimes so that they don't live longer than their brigades.
  That's not nice.
- Simplify some usage of f->r->connection to f->c in the bucket creation
  calls.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@95416 13f79535-47bb-0310-9956-ffa450edef68