no need to write config file if an option is missing

Core/core.py

@@ -299,12 +299,9 @@ class GajimCore:
 		for part in default_tab.keys():
 			if not self.cfgParser.tab.has_key(part):
 				self.cfgParser.tab[part] = {}
-				self.cfgParser.writeCfgFile()
 			for option in default_tab[part].keys():
 				if not self.cfgParser.tab[part].has_key(option):
 					self.cfgParser.tab[part][option] = default_tab[part][option]
-				self.cfgParser.writeCfgFile()
-		self.parse()
 	# END init_cfg_file
 
 	def parse(self):