AESSecurity singleton again

poster is png now

README.md

@@ -1,3 +1,3 @@
 # MISPBump
 
-![Alt text](./screenshots/MispBump-poster-10.svg)
+![Alt text](./screenshots/poster-png.png)

app/src/main/java/de/overview/wg/its/mispbump/auxiliary/AESSecurity.java

@@ -148,14 +148,10 @@ public class AESSecurity {
 
 	public static AESSecurity getInstance() {
 
-	    //todo: make singleton again
+		if(instance == null) {
+			instance = new AESSecurity();
+		}
 
-//		if(instance == null) {
-//			instance = new AESSecurity();
-//		}
-//
-//		return instance;
-
-        return new AESSecurity();
+		return instance;
 	}
-}
+}