Merge remote-tracking branch 'origin/topic/seth/zeek_init'

* origin/topic/seth/zeek_init:
  Some more testing fixes.
  Update docs and tests for bro_(init|done) -> zeek_(init|done)
  Implement the zeek_init handler.

testing/btest/scripts/base/frameworks/input/event.zeek

@@ -35,7 +35,7 @@ event line(description: Input::EventDescription, tpe: Input::Event, i: int, b: b
 	print outfile, b;
 	}
 
-event bro_init()
+event zeek_init()
 	{
 	outfile = open("../out");
 	Input::add_event([$source="../input.log", $name="input", $fields=Val, $ev=line, $want_record=F]);