Renaming of config file params, clean-up

blitzstats.ini.default

@@ -1,14 +1,13 @@
 [OPTIONS]
 ## You may set your preferred commandline param defaults here
-#opt_extended    = False
-#opt_hist        = False
-#opt_stat_func   = tank_tier
+#opt_analyzer_extended    = False
+#opt_analyzer_hist        = False
+#opt_analyzer_stat_func   = player
 
 [WG]
 ## Find your WG account_id :  https://developers.wargaming.net/reference/all/wotb/account/list/
 #wg_id		    = 0
 ## WG API limits requests / sec to 10 for client apps
 ## Check https://developers.wargaming.net/documentation/guide/getting-started/
-#wg_rate_limit   = 10
 #wg_app_id       = XXXXXXXXXXX