Merge pull request #377 from KayenEQ/Development

Fix to allow for mana drain spells to work if client is full mana.

zone/client_process.cpp

@@ -1894,7 +1894,7 @@ void Client::DoHPRegen() {
 }
 
 void Client::DoManaRegen() {
-	if (GetMana() >= max_mana)
+	if (GetMana() >= max_mana && spellbonuses.ManaRegen >= 0)
 		return;
 
 	SetMana(GetMana() + CalcManaRegen() + RestRegenMana);