Ticket #633 - allow nsslapd-nagle to be disabled, and also tcp cork
https://fedorahosted.org/389/ticket/633
Reviewed by: nhosoi (Thanks!)
Branch: master
Fix Description: Instead of hard-coded enable_nagle = 1 in the connection
code, use the server config nsslapd-nagle setting. The default is on
on linux. Also make the tcp cork in connection_dispatch_operation() depend
on the nagle setting - if nagle is enabled, then enable tcp cork, otherwise,
disable tcp cork too.
Platforms tested: RHEL6 x86_64
Flag Day: no
Doc impact: Yes - document new config parameter