Save/Load

* enchanted build.gradle
* added test for save/load (still incomplete)
* implemented save/load (still incomplete)

build.gradle

@@ -3,6 +3,19 @@ apply plugin: 'eclipse'
 
 version='1.0-SNAPSHOT'
 
+test {
+    useJUnitPlatform()
+}
+
+sourceSets {
+    main {
+        java {
+            srcDirs "src"
+            srcDirs "test"
+        }
+    }
+}
+
 repositories {
     mavenCentral()
 }
@@ -10,6 +23,6 @@ repositories {
 dependencies {
 	compile group: 'com.google.code.gson', name: 'gson', version: '2.8.5'
 	
-	compile group: 'commons-collections', name: 'commons-collections', version: '3.2'
-    testCompile group: 'junit', name: 'junit', version: '4.+'
+	/*compile group: 'commons-collections', name: 'commons-collections', version: '3.2'*/
+	/*testCompile 'junit:junit:4.4'*/
 }