Finally a somewhat functional tutorial / Many bugfixes

core/src/io/anuke/mindustry/game/ContentDatabase.java

@@ -40,7 +40,7 @@ public class ContentDatabase{
      * @return whether or not this content was newly unlocked.
      */
     public boolean unlockContent(UnlockableContent content){
-        if(!content.canBeUnlocked()) return false;
+        if(!content.canBeUnlocked() || content.alwaysUnlocked()) return false;
 
         if(!unlocked.containsKey(content.getContentType())){
             unlocked.put(content.getContentType(), new ObjectSet<>());

core/src/io/anuke/mindustry/game/Saves.java

@@ -79,7 +79,7 @@ public class Saves{
             if(time > Settings.getInt("saveinterval") * 60){
                 saving = true;
 
-                Timers.run(2f, () -> {
+                Timers.runTask(2f, () -> {
                     try{
                         current.save();
                     }catch(Exception e){