move channel autojoin into a separate section, load it differently

dr.botzo.cfg

@@ -1,7 +1,6 @@
 [IRC]
 server = irc.foonetic.net
 port = 6667
-channel = #bss
 nick = dr_devzo
 name = dr. devzo
 
@@ -11,3 +10,6 @@ debug = true
 
 [admin]
 userhost = bss@ayu.incorporeal.org
+
+[channels]
+autojoin = #bss

dr.botzo.py

@@ -18,10 +18,14 @@ def on_connect(connection, event):
         connection.mode(nick, usermode)
     except NoOptionError: pass
 
-    # join the specified channel
-    # TODO: support multiple
-    if irclib.is_channel(channel):
-        connection.join(channel)
+    # join the specified channels
+    try:
+        autojoins = config.get('channels', 'autojoin').split(',')
+        for channel in autojoins:
+            if irclib.is_channel(channel):
+                connection.join(channel)
+    except NoOptionError: pass
+
 #####
 # on_privmsg
 # private messages to the bot
@@ -59,7 +63,6 @@ try:
     # load connection info
     server  = config.get('IRC', 'server')
     port    = config.getint('IRC', 'port')
-    channel = config.get('IRC', 'channel')
     nick    = config.get('IRC', 'nick')
     ircname = config.get('IRC', 'name')
 except NoSectionError as e: