* make replication timeouts configurable via startup options
The following options are available (for active failover
and master-slave replication):
--replication.connect-timeout
--replication.request-timeout
Values can be specified in seconds. If these options are used, they will
be used for replication requests, overriding any hard-coded defaults or
explicitly configured timeouts.
Additionally, this change increases the default request timeout
for replication from 10 minutes to 20 minutes.
* do *not* change default value for timeouts
* make tests work again
* Update CHANGELOG