[PATCH]: wpa_gui-qt4: scroll to bottom of event history viewer for every new event

[Kel Modderman]

Scroll to bottom of the event history treeview widget when every new event
is added to prevent user from having to scroll down to view new events once
the history has grown beyond widgets vertical size.

Signed-off-by: Kel Modderman <kel at otaku42.de>
---
--- a/wpa_supplicant/wpa_gui-qt4/eventhistory.cpp
+++ b/wpa_supplicant/wpa_gui-qt4/eventhistory.cpp
@@ -117,4 +117,5 @@
 {
 	elm->addEvent(msg.getTimestamp().toString("yyyy-MM-dd hh:mm:ss.zzz"),
 		      msg.getMsg());
+	eventListView->scrollToBottom();
 }
---