Update for new gradle

build.gradle

@@ -2,8 +2,8 @@ apply plugin: 'java'
 apply plugin: 'idea'
 apply from: "https://github.com/shadowfacts/maven/raw/master/maven.gradle"
 
-sourceCompatibility = 1.7
-targetCompatibility = 1.7
+sourceCompatibility = 17
+targetCompatibility = 17
 group = "no.birkett"
 archivesBaseName = "kiwi"
 version = '1.0'
@@ -13,5 +13,5 @@ repositories {
 }
 
 dependencies {
-    testCompile group: 'junit', name: 'junit', version: '4.11'
-}
+    testImplementation group: 'junit', name: 'junit', version: '4.11'
+}