Applied ${TASK_LABEL} to tests' labels.
Merge remote-tracking branch 'upstream/next' into MAID-415_handle_task_label
Added TASK_LABEL to global labels for Exper targets.
Merge pull request #166 from Fraser999/MAID-415_handle_task_label

Applied ${TASK_LABEL} to tests' labels.
Merge branch 'next' of https://github.com/maidsafe/MaidSafe into next
SHA stamp by Jenkins as building correctly