Logging framework update and mass Log::ID renaming.

- Log path's are generated in the scripting land
  now.  The default Log stream ID to path string
  mapping works like this:
    - Notice::LOG -> "notice"
    - Notice::POLICY_LOG -> "notice_policy"
    - TestModule::LOG -> "test_module"

- Logging streams updated across all of the shipped
  scripts to be more user friendly.  Instead of
  the logging stream ID HTTP::HTTP, we now have
  HTTP::LOG, etc.

- The priorities on some bro_init handlers have
  been adjusted to make the process of applying
  filters or disabling streams easier for users.

scripts/base/frameworks/dpd/main.bro

@@ -7,7 +7,7 @@ module DPD;
 redef signature_files += "base/frameworks/dpd/dpd.sig";
 
 export {
-	redef enum Log::ID += { DPD };
+	redef enum Log::ID += { LOG };
 
 	type Info: record {
 		## Timestamp for when protocol analysis failed.
@@ -38,9 +38,9 @@ redef record connection += {
 	dpd: Info &optional;
 };
 
-event bro_init()
+event bro_init() &priority=5
 	{
-	Log::create_stream(DPD, [$columns=Info]);
+	Log::create_stream(DPD::LOG, [$columns=Info]);
 	
 	# Populate the internal DPD analysis variable.
 	for ( a in dpd_config )
@@ -104,5 +104,5 @@ event protocol_violation(c: connection, atype: count, aid: count,
 				reason: string) &priority=-5
 	{
 	if ( c?$dpd )
-		Log::write(DPD, c$dpd);
+		Log::write(DPD::LOG, c$dpd);
 	}