change ssh username from Administrator to administrator to workaround username bug in copssh
change ssh username from Administrator to administrator to workaround username bug in copssh

Change-Id: I69e5256e2f95ea89413874c04d302b70a9f34797
Reviewed-on: http://review.couchbase.org/41663
Reviewed-by: Venu Uppalapati <5c73d43f38c8de2bc4a2e4d15365e52f60b59dae@gmail.com>
Tested-by: Venu Uppalapati <5c73d43f38c8de2bc4a2e4d15365e52f60b59dae@gmail.com>

thomas-couchbase/perfrunner,EricACooper/perfrunner,pavel-paulau/perfrunner,vmx/perfrunner,vmx/perfrunner,thomas-couchbase/perfrunner,mikewied/perfrunner,pavel-paulau/perfrunner,EricACooper/perfrunner,dkao-cb/perfrunner,couchbase/perfrunner,pavel-paulau/perfrunner,couchbase/perfrunner,EricACooper/perfrunner,couchbase/perfrunner,EricACooper/perfrunner,couchbase/perfrunner,couchbase/perfrunner,pavel-paulau/perfrunner,hsharsha/perfrunner,couchbase/perfrunner,mikewied/perfrunner,PaintScratcher/perfrunner,hsharsha/perfrunner,PaintScratcher/perfrunner,pavel-paulau/perfrunner,dkao-cb/perfrunner