add message loss detection
Merge pull request #189 from huafengw/msg_lost

add message lost detection
add a reference about how to squash commits
Merge pull request #211 from huafengw/docUpdate

add a reference about how to squash commits
Add Experiments folder
Merge pull request #220 from clockfly/master

Add Experiments folder
Add wizard to run benchmark test
Add explanation about why we name it as "gearpump"