Implement basic functionalities for workflow control.
- Manage join/leave of clients
- All clients communicate via socket.io
- Probes emit events
- Managers register workflows (by using a workflow essence)
- Send kickstart request to Managers to launch workflows
- Route events to workflow runs
- Queue events to not lose events between workflow tasks
- Fixed some issues found while working on testcases
- Set to perform coverage and unittest and generate outputs to files

Change-Id: I678723edc20df9247d63a4bf6380785ab8b2b221
diff --git a/logs/.gitignore b/logs/.gitignore
new file mode 100644
index 0000000..c96a04f
--- /dev/null
+++ b/logs/.gitignore
@@ -0,0 +1,2 @@
+*
+!.gitignore
\ No newline at end of file