Tidied python plugins

Use private naming convention
Move local callback functions to top

ascii.py

@@ -1,12 +1,12 @@
 import prof
 import subprocess
 
-def prof_init(version, status):
-    prof.register_command("/ascii", 1, 1, "/ascii", "ASCIIfy a message", "ASCIIfy a message.", cmd_ascii)
-
-def cmd_ascii(text):
+def _cmd_ascii(text):
     recipient = prof.get_current_recipient()
     if recipient:
         proc = subprocess.Popen(['figlet', '--', text], stdout=subprocess.PIPE)
         ascii_out = proc.communicate()[0].decode('utf-8')
         prof.send_line(u'\u000A' + ascii_out)
+
+def prof_init(version, status):
+    prof.register_command("/ascii", 1, 1, "/ascii", "ASCIIfy a message", "ASCIIfy a message.", _cmd_ascii)