Set default eject delay for fts service.
Set default eject delay for fts service.

It's smaller than for query service because fts (unlike the former)
has all the information to redirect clients to non-ejected nodes.

Change-Id: Idaebc86444aba1eb9c39f613aca687d52df94728
Reviewed-on: http://review.couchbase.org/60757
Tested-by: Aliaksey Artamonau <3c875bcfb3adf2a65b2ae7686ca921e6c9433147@gmail.com>
Reviewed-by: Artem Stemkovski <15a0730a27c69f62ab86f2b6c639fca202166c02@couchbase.com>

membase/ns_server,membase/ns_server,ceejatec/ns_server,membase/ns_server,membase/ns_server,ceejatec/ns_server,ceejatec/ns_server,ceejatec/ns_server,membase/ns_server,ceejatec/ns_server,membase/ns_server,ceejatec/ns_server