move all logging to a proper logging system

Former-commit-id: 2b80b4151a
Former-commit-id: 8b4aa7a33e94df5a4903c52be31b266999549b0e

src/java/net/i2p/i2pfirefox/I2PFirefoxProfileUnpacker.java

@@ -23,7 +23,7 @@ public class I2PFirefoxProfileUnpacker extends I2PCommonBrowser {
   public static void main(String[] args) {
     String profileDirectory = I2PFirefoxProfileBuilder.profileDirectory();
     if (profileDirectory == null) {
-      System.out.println("No profile directory found");
+      println("No profile directory found");
       return;
     }
   }