Split 'SplitMerge' class into 2 normal

Update NETCommunications: installation speed now 2x faster

src/main/java/nsusbloader/cli/GoldLeaf.java

@@ -128,6 +128,7 @@ public class GoldLeaf {
                 "GoldLeaf"+goldLeafVersion,
                 filterForNsp);
         Thread thread = new Thread(task);
+        thread.setDaemon(true);
         thread.start();
         thread.join();
     }

src/main/java/nsusbloader/cli/NXDT.java

@@ -52,6 +52,7 @@ public class NXDT {
     private void runBackend() throws InterruptedException{
         NxdtTask nxdtTask = new NxdtTask(saveTo);
         Thread thread = new Thread(nxdtTask);
+        thread.setDaemon(true);
         thread.start();
         thread.join();
     }

src/main/java/nsusbloader/cli/TinfoilNet.java

@@ -77,7 +77,7 @@ public class TinfoilNet {
                 + "\tns-usbloader -n nsip=<arg1> [hostip=<arg2>] FILE1 ...\n"
                 + "\tns-usbloader --tfn nsip=<arg1> [hostip=<arg2>] FILE1 ..."
                 + "\n\nOptions:"
-                + "\n\tnsip=<ip>\t\t\tDefine NS IP address (mandatory)"
+                + "\n\tnsip=<ip>\t\tDefine NS IP address (mandatory)"
                 + "\n\thostip=<ip[:port]>\tDefine this host IP address. Will be obtained automatically if not set.");
     }
 
@@ -138,6 +138,7 @@ public class TinfoilNet {
                 hostPortNum,
                 "");
         Thread netCommThread = new Thread(netCommunications);
+        netCommThread.setDaemon(true);
         netCommThread.start();
         netCommThread.join();
     }

src/main/java/nsusbloader/cli/TinfoilUsb.java

@@ -62,6 +62,7 @@ public class TinfoilUsb {
     private void runTinfoilBackend() throws InterruptedException{
         Runnable task = new UsbCommunications(filesList, "TinFoil", false);
         Thread thread = new Thread(task);
+        thread.setDaemon(true);
         thread.start();
         thread.join();
     }