Fixes for script auto-documentation.

- Fixing the parts of the `make restdoc` and `make doc` process that were
  broken by the last Bro script re-organization

- Generated documentation for Bro scripts derived from BiFs now use the
  original BiF source file as the "original source file" link

- Renaming of the internal POLICYDEST definition and other misc places that
  refer to "policy" scripts; that terminology doesn't make total sense now

- Added a documentation blacklist reminder test that will fail if there's
  scripts that are blacklisted from being documentated because they're still
  in progress

- Some minor Bro script changes to fix small @load dependency errors

Addresses #543

scripts/base/frameworks/cluster/setup-connections.bro

@@ -1,3 +1,5 @@
+@load base/frameworks/communication
+
 module Cluster;
 
 event bro_init() &priority=9

scripts/base/frameworks/communication/__load__.bro

@@ -2,4 +2,4 @@
 # TODO: get rid of this as soon as the Expr.cc hack is changed.
 @if ( getenv("ENABLE_COMMUNICATION") != "" )
 @load ./main
-@endif
+@endif

scripts/base/frameworks/metrics/conn-example.bro

@@ -1,4 +1,4 @@
-@load frameworks/metrics
+@load base/frameworks/metrics
 
 redef enum Metrics::ID += { 
 	CONNS_ORIGINATED, 
@@ -16,4 +16,4 @@ event connection_established(c: connection)
 	Metrics::add_data(CONNS_ORIGINATED, [$host=c$id$orig_h], 1);
 	Metrics::add_data(CONNS_RESPONDED,  [$host=c$id$resp_h], 1);
 	}
-	
+	

scripts/base/frameworks/metrics/http-example.bro

@@ -1,4 +1,4 @@
-@load frameworks/metrics
+@load base/frameworks/metrics
 
 redef enum Metrics::ID += {
 	HTTP_REQUESTS_BY_STATUS_CODE,
@@ -17,4 +17,4 @@ event HTTP::log_http(rec: HTTP::Info)
 		Metrics::add_data(HTTP_REQUESTS_BY_HOST, [$index=rec$host], 1);
 	if ( rec?$status_code )
 		Metrics::add_data(HTTP_REQUESTS_BY_STATUS_CODE, [$host=rec$id$orig_h, $index=fmt("%d", rec$status_code)], 1);
-	}
+	}

scripts/base/frameworks/notice/actions/email_admin.bro

@@ -1,4 +1,3 @@
-
 module Notice;
 
 export {
@@ -25,4 +24,4 @@ event notice(n: Notice::Info) &priority=-5
 		if ( email != "" )
 			email_notice_to(n, email, T);
 		}
-	}
+	}

scripts/base/frameworks/notice/extend-email/hostnames.bro

@@ -8,7 +8,7 @@ event Notice::notice(n: Notice::Info) &priority=10
 		return;
 	
 	# This should only be done for notices that are being sent to email.
-	if ( ACTION_EMAIL !in n$action )
+	if ( ACTION_EMAIL !in n$actions )
 		return;
 		
 	local output = "";
@@ -37,4 +37,4 @@ event Notice::notice(n: Notice::Info) &priority=10
 	
 	if ( output != "" )
 		n$email_body_sections[|n$email_body_sections|] = output;
-	}
+	}

scripts/base/frameworks/notice/weird.bro

@@ -1,4 +1,3 @@
-
 module Weird;
 
 export {