Added better logging and browser support.

We still need to work on the Linux browser a bit.

interface/build.gradle

@@ -15,7 +15,11 @@ repositories {
 // In this section you declare the dependencies for your production and test code
 dependencies {
     // The production code uses the SLF4J logging API at compile time
-    implementation 'org.slf4j:slf4j-api:1.7.25'
+    implementation 'org.slf4j:slf4j-api:1.7.30'
+    implementation 'org.apache.logging.log4j:log4j-api:2.13.3'
+    implementation 'org.apache.logging.log4j:log4j-core:2.13.3'
+    implementation 'org.apache.logging.log4j:log4j-slf4j-impl:2.13.3'
+
     implementation 'com.google.code.gson:gson:2.8.7'
     implementation 'com.googlecode.soundlibs:jlayer:1.0.1.4'
     implementation 'com.mpatric:mp3agic:0.9.1'
@@ -28,6 +32,9 @@ dependencies {
     testImplementation 'junit:junit:4.12'
 }
 
+sourceCompatibility = JavaVersion.VERSION_16
+targetCompatibility = JavaVersion.VERSION_16
+
 // Define the main class for the application
 mainClassName = defaultPackage + '.player.Interface'
 //mainClassName = defaultPackage + '.localPlayer.Player'