Add cracked whitelist (Fixes #42)

(switch-mode -> switching to online-mode from offlinemode)

core/src/main/resources/config.yml

@@ -29,6 +29,13 @@ autoRegister: false
 # tries to join again, so the player could join as cracked player.
 secondAttemptCracked: false
 
+# New cracked players will be kicked from server. Good if you want switch from offline-mode to online-mode without
+# losing players!
+#
+# Existing cracked and premium players could still join your server. Moreover you could add playernames to a whitelist.
+# So that these cracked players could join too although they are new players.
+switchMode: false
+
 # If this plugin detected that a player has a premium, it can also set the associated
 # uuid from that account. So if the players changes their usernames, they will still have
 # the same playerdata (inventory, permissions, ...)

core/src/main/resources/messages.yml

@@ -21,6 +21,9 @@
 
 # ========= Shared (BungeeCord and Bukkit)   ============
 
+# Switch mode is activated and a new (non-whitelist) cracked player tries to join
+switch-kick-message: '&4Only paid minecraft whitelisted accounts are allowed to join this server'
+
 # Player activated premium logins in order to skip offline authentication
 add-premium: '&2Added to the list of premium players'