Rank rework

This makes an under the hood rank-rework. Nothing is changed from the player perspective.

src/com/massivecraft/factions/chat/tag/ChatTagRole.java

@@ -25,7 +25,7 @@ public class ChatTagRole extends ChatTag
 		// Get entities
 		MPlayer usender = MPlayer.get(sender);
 		
-		return Txt.upperCaseFirst(usender.getRole().toString().toLowerCase());
+		return Txt.upperCaseFirst(usender.getRank().getName().toLowerCase());
 	}
 
 }

src/com/massivecraft/factions/chat/tag/ChatTagRoleprefix.java

@@ -29,7 +29,7 @@ public class ChatTagRoleprefix extends ChatTag
 		Faction faction = usender.getFaction();
 		if (faction.isNone()) return "";
 		
-		return usender.getRole().getPrefix();
+		return usender.getRank().getPrefix();
 	}
 
 }

src/com/massivecraft/factions/chat/tag/ChatTagRoleprefixforce.java

@@ -24,7 +24,7 @@ public class ChatTagRoleprefixforce extends ChatTag
 		// Get entities
 		MPlayer usender = MPlayer.get(sender);
 		
-		return usender.getRole().getPrefix();
+		return usender.getRank().getPrefix();
 	}
 
 }