More tests (#240)

* add goss healthcheck to meet
* add goss healthcheck to scheduler
* enhance goss tests for webapp
* add meet and scheduler to make target for goss
* fix healtcheck for webapp

will report 200, but also cause an error because of it being requested over plain
have dedicated url for check
* disable stats reporting in build
* update commander

scheduler/goss.yaml

@@ -0,0 +1,9 @@
+command:
+  kill -SIGUSR2 $(pidof supercronic):
+    exit-status: 0
+    stdout: []
+    stderr: []
+    timeout: 10000
+process:
+  supercronic:
+    running: true