Do not use Administrator account in tests

Fixes tests after http://review.couchbase.org/28698

Depends-On: http://review.couchbase.org/28747
Change-Id: I13b1a991519073411ee0d8fff3092331dcba6022
Reviewed-on: http://review.couchbase.org/28748
Tested-by: Sergey Avseyev <sergey.avseyev@gmail.com>
Reviewed-by: Trond Norbye <trond.norbye@gmail.com>
Make connect order deterministic

The current patch allows the user to toggle between deterministic
and random connect order for the bootstrap list.

Change-Id: Ie9476d5fd08be95e6a621c8e3d8ebfc4caa64853
Reviewed-on: http://review.couchbase.org/28689
Reviewed-by: Sergey Avseyev <sergey.avseyev@gmail.com>
Tested-by: Trond Norbye <trond.norbye@gmail.com>
CCBC-263 Skip unfinished SASL commands

During rebalance, it is possible that the newly added server doesn't
have chance to finish SASL auth before the cluster will push config
update, in this case packet relocator messing cookies.

Change-Id: Ic3fb01b4a39d2e8e68c690c264a2918d631d9602