use our own tmp dir for grabbing logs
use our own tmp dir for grabbing logs

Change-Id: Ic9284b5056562b1adb7bb0fc5a50aeb12fb1c957
Reviewed-on: http://review.northscale.com/1028
Reviewed-by: Sean Lynch <9c3328a4a1f4f8f5c18b2d5b9057163c49b93ff3@literati.org>
Tested-by: Sean Lynch <9c3328a4a1f4f8f5c18b2d5b9057163c49b93ff3@literati.org>

ingenthr/ns_server,membase/ns_server,membase/ns_server,daverigby/ns_server,daverigby/ns_server,nimishzynga/ns_server,mschoch/ns_server,t3rm1n4l/ns_server,vzasade/ns_server,t3rm1n4l/ns_server,vzasade/ns_server,t3rm1n4l/ns_server,mschoch/ns_server,ceejatec/ns_server,mschoch/ns_server,pavel-blagodov/ns_server,pavel-blagodov/ns_server,mschoch/ns_server,t3rm1n4l/ns_server,pavel-blagodov/ns_server,vzasade/ns_server,pavel-blagodov/ns_server,nimishzynga/ns_server,nimishzynga/ns_server,ceejatec/ns_server,membase/ns_server,ceejatec/ns_server,ceejatec/ns_server,mschoch/ns_server,t3rm1n4l/ns_server,nimishzynga/ns_server,membase/ns_server,ceejatec/ns_server,daverigby/ns_server,ceejatec/ns_server,ingenthr/ns_server,mschoch/ns_server,daverigby/ns_server,nimishzynga/ns_server,ingenthr/ns_server,nimishzynga/ns_server,vzasade/ns_server,membase/ns_server,daverigby/ns_server,membase/ns_server,ingenthr/ns_server