make "submit_after" a configuratble option (config.ini)

proxywatchd.py

@@ -148,6 +148,7 @@ class Proxywatchd():
 			self.mysqlite = None
 	def __init__(self):
 		config.load()
+		global submit_after
 		self.in_background = False
 		self.threads = []
 		self.stopping = threading.Event()
@@ -159,7 +160,7 @@ class Proxywatchd():
 		self.mysqlite.commit()
 		self._close_db()
 
-		self.submit_after = 200 # number of collected jobs before writing db
+		self.submit_after = config.submit_after # number of collected jobs before writing db
 		self.jobs = []
 		self.collected = []