remote_exec.sh improvements
remote_exec.sh improvements

- reports error (action 0) if evaluated shell command returned non-zero exit status

- actions (shell commands) can be prefixed with "i:" allowing test
  engine to understand them as inputs. The prefix is removed by the
  adapter before evaluation.

heivi/fMBT,pombreda/fMBT,acozzette/fMBT,OMKR/fMBT,pablovirolainen/fMBT,pablovirolainen/fMBT,rseymour/fMBT,OMKR/fMBT,violep01/fMBT,pombreda/fMBT,giantpinkwalrus/fMBT,giantpinkwalrus/fMBT,OMKR/fMBT,OMKR/fMBT,acozzette/fMBT,violep01/fMBT,01org/fMBT,mixu-/fMBT,01org/fMBT,giantpinkwalrus/fMBT,rseymour/fMBT,acozzette/fMBT,pablovirolainen/fMBT,rseymour/fMBT,acozzette/fMBT,pyykkis/fMBT,CosminNiculae/fMBT,mlq/fMBT,pyykkis/fMBT,01org/fMBT,pombreda/fMBT,pombreda/fMBT,mlq/fMBT,yoonkiss/fMBT,CosminNiculae/fMBT,pyykkis/fMBT,OMKR/fMBT,pablovirolainen/fMBT,01org/fMBT,pombreda/fMBT,pablovirolainen/fMBT,mixu-/fMBT,pyykkis/fMBT,CosminNiculae/fMBT,heivi/fMBT,CosminNiculae/fMBT,mlq/fMBT,giantpinkwalrus/fMBT,mlq/fMBT,heivi/fMBT,rseymour/fMBT,CosminNiculae/fMBT,acozzette/fMBT,violep01/fMBT,rseymour/fMBT,mlq/fMBT,rseymour/fMBT,CosminNiculae/fMBT,violep01/fMBT,pyykkis/fMBT,heivi/fMBT,rseymour/fMBT,mlq/fMBT,mlq/fMBT,yoonkiss/fMBT,heivi/fMBT,pombreda/fMBT,CosminNiculae/fMBT,mixu-/fMBT,OMKR/fMBT,yoonkiss/fMBT,yoonkiss/fMBT,01org/fMBT,mixu-/fMBT,pombreda/fMBT,violep01/fMBT,pablovirolainen/fMBT,pyykkis/fMBT,heivi/fMBT,giantpinkwalrus/fMBT,heivi/fMBT,yoonkiss/fMBT,mixu-/fMBT