Get rid of JCenter and other obsolete dependencies

build.gradle

@@ -20,17 +20,11 @@ plugins {
     id "ru.ileasile.kotlin.publisher" version "$libsPublisherVersion"
 }
 
-apply plugin: 'kotlin'
-apply plugin: 'application'
 apply plugin: "org.jetbrains.kotlin.jupyter.api"
 
-// not neeeded but does not work without
-mainClassName = "foo.Bar" // not needed but does not work without
-
 repositories {
     mavenCentral()
-    jcenter()
-    maven { url 'https://kotlin.bintray.com/kotlin-datascience' }
+    maven { url "https://maven.pkg.jetbrains.space/public/p/kotlinx-html/maven" }
 
     def repoFolder = new File(projectDir as File, jupyterApiTCRepo as String)
     if(repoFolder.exists()) {
@@ -43,15 +37,14 @@ configurations {
 }
 
 dependencies {
-    compile "org.jetbrains.kotlin:kotlin-stdlib"
-    compile "org.jetbrains.kotlin:kotlin-reflect"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib"
+    implementation "org.jetbrains.kotlin:kotlin-reflect"
 
-    compile "org.apache.commons:commons-csv:1.3"
-    compile 'com.beust:klaxon:5.2'
+    implementation "org.apache.commons:commons-csv:1.3"
+    implementation "com.beust:klaxon:5.5"
 
-    testCompile group: 'junit', name: 'junit', version: '4.12'
-    testCompile 'io.kotlintest:kotlintest-assertions:3.1.6'
-    testCompile 'de.mpicbg.scicomp:kutils:0.11'
+    testImplementation "junit:junit:4.12"
+    testImplementation "io.kotlintest:kotlintest-assertions:3.1.6"
 
     // needed to work around https://youtrack.jetbrains.com/issue/KT-15064
     compileOnly "org.jetbrains.kotlin:kotlin-script-runtime:$kotlin_version"
@@ -127,8 +120,9 @@ kotlinPublications {
         packageName = artifactId
     }
 }
+
 compileKotlin {
     kotlinOptions {
         freeCompilerArgs = ["-Xinline-classes"]
     }
-}
+}