Update some tools

Author: aconsuegra

.travis.yml

@@ -3,14 +3,10 @@ language: java
 before_cache:
   - rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock
   - rm -fr $HOME/.gradle/caches/*/plugin-resolution/
-
 cache:
   directories:
-    - $HOME/.gradle/caches/3.4.1
-    - $HOME/.gradle/caches/jars-1
-    - $HOME/.gradle/daemon
-    - $HOME/.gradle/native
-    - $HOME/.gradle/wrapper
+    - $HOME/.gradle/caches/
+    - $HOME/.gradle/wrapper/
 
 jdk:
-  - oraclejdk8
+  - openjdk8

build.gradle

@@ -1,5 +1,5 @@
 buildscript {
-    ext.kotlin_version = '1.1.2'
+    ext.kotlin_version = '1.3.70'
     repositories {
         jcenter()
         maven {
@@ -25,5 +25,5 @@ repositories {
 
 dependencies {
     testCompile group: 'junit', name: 'junit', version: '4.12'
-    compile "org.jetbrains.kotlin:kotlin-stdlib-jre8:$kotlin_version"
+    compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
 }

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Sat May 20 13:29:30 CEST 2017
+#Tue Mar 10 15:02:06 CET 2020
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-all.zip