Added Slovenian translation (from Andrej Žgavec). Had to update build.gradle dependencies to get it to compile

build.gradle

@@ -21,6 +21,9 @@ allprojects {
         }
         //maven { url 'https://jitpack.io' }
     }
+    tasks.withType(JavaCompile) {
+        options.compilerArgs << "-Xlint:unchecked" << "-Xlint:deprecation"
+    }
 }