Multiplayer bugfixes / Balancing

core/src/io/anuke/mindustry/net/Administration.java

@@ -163,7 +163,7 @@ public class Administration{
     public boolean adminPlayer(String id, String usid){
         PlayerInfo info = getCreateInfo(id);
 
-        if(info.admin)
+        if(info.admin && info.adminUsid != null && info.adminUsid.equals(usid))
             return false;
 
         info.adminUsid = usid;

core/src/io/anuke/mindustry/net/Interpolator.java

@@ -36,7 +36,6 @@ public class Interpolator{
     }
 
     public void update(){
-
         if(lastUpdated != 0 && updateSpacing != 0){
             float timeSinceUpdate = Time.timeSinceMillis(lastUpdated);
             float alpha = Math.min(timeSinceUpdate / updateSpacing, 2f);