Added bot plugin, it also has almost-functional botnet.

Changed configure.in's functionality so that you could tell what modules you
want to build in main irssi binary and it will create automatically the .c
files that need to call the module_init()/deinit() functions.

Fixed several minor things..


git-svn-id: http://svn.irssi.org/repos/irssi/trunk@230 dbcabf3a-b0e7-0310-adc4-f8d773084564

src/irc/bot/bot.h

@@ -0,0 +1,26 @@
+#ifndef __BOT_H
+#define __BOT_H
+
+typedef struct
+{
+    PLUGIN_REC *plugin;
+    gboolean loaded;
+
+    GHashTable *users;
+    GSList *botnets;
+
+    gchar *nick;
+    gint rank;
+
+    time_t last_write;
+}
+PLUGIN_DATA;
+
+void plugin_bot_events(PLUGIN_REC *plugin);
+
+#include "botnet.h"
+#include "users.h"
+
+#define MODULE_NAME "bot"
+
+#endif