Regression

SGSN_Tests.TC_detach_unknown_poweroff (from Titan)

Failing for the past 1 build (Since #88 )

"VTY Timeout for prompt: enable"
      SGSN_Tests.ttcn:3942 SGSN_Tests control part
      SGSN_Tests.ttcn:1414 TC_detach_unknown_poweroff testcase