Few improvements

* Fix netdata config files owner
* Increase net backlog in sysctl.conf
* force wo-kernel tweak update during upgrade

wo/cli/templates/sysctl.mustache

@@ -196,8 +196,8 @@ net.core.somaxconn = 32768
 # Increase number of incoming connections backlog
 net.core.netdev_max_backlog = 16384
 net.core.dev_weight = 64
-net.core.netdev_budget = 600
-net.core.netdev_budget_usecs = 4000
+net.core.netdev_budget = 1200
+net.core.netdev_budget_usecs = 8000
 
 # Increase the maximum amount of option memory buffers
 net.core.optmem_max = 65535