Fixed race condition in Dispatcher due to implicit read commited on jobdef parameters

Signed-off-by: marcanpilami <marsu_pilami@msn.com>
Race conditions in high frequency scenarios. Related to #8

Signed-off-by: marcanpilami <marsu_pilami@msn.com>
Fix #8 (just restored sync tests, everything was actually fixed in the previous commit)

Signed-off-by: marcanpilami <marsu_pilami@msn.com>