Re-add gradle.properties file

build.gradle

@@ -1,7 +1,6 @@
 plugins {
     id 'org.jetbrains.kotlin.jvm' version '1.3.41' apply(false)
     id 'org.jetbrains.intellij' version '0.4.9' apply(false)
-    id 'org.jmailen.kotlinter' version '1.26.0' apply(false)
     id 'org.sonarqube' version '2.7.1'
     id "io.gitlab.arturbosch.detekt" version '1.0.0-RC16'
 }
@@ -17,7 +16,6 @@ allprojects {
     }
 }
 
-apply from: 'gradle/properties.gradle'
 apply from: 'gradle/code-quality.gradle'
 apply from: 'gradle/testing.gradle'
 apply from: 'gradle/wrapper.gradle'

gradle.properties

@@ -0,0 +1,18 @@
+kotlinVersion=1.3.40
+kotlinxCoroutinesVersion=1.3.0-M2
+junitVersion=4.12
+powermockVersion=2.0.2
+bouncycastleVersion=1.54
+c3p0Version=0.9.5.2
+scryptVersion=1.4.0
+nettyVersion=4.0.34.Final
+guavaVersion=19.0
+commonsCompressVersion=1.10
+assertjVersion=3.8.0
+classGraphVersion=4.0.6
+junitVintageVersion=5.1.0
+junitPlatformVersion=1.1.0
+junitJupiterVersion=5.1.0
+mockkVersion=1.7.15
+assertkVersion=0.9
+detektVersion=1.0.0-RC16

gradle/properties.gradle

@@ -1,20 +0,0 @@
-ext {
-    kotlinVersion = '1.3.40'
-    kotlinxCoroutinesVersion = '1.3.0-M2'
-    junitVersion = '4.12'
-    powermockVersion = '2.0.2'
-    bouncycastleVersion = '1.54'
-    c3p0Version = '0.9.5.2'
-    scryptVersion = '1.4.0'
-    nettyVersion = '4.0.34.Final'
-    guavaVersion = '19.0'
-    commonsCompressVersion = '1.10'
-    assertjVersion = '3.8.0'
-    classGraphVersion = '4.0.6'
-    junitVintageVersion = '5.1.0'
-    junitPlatformVersion = '1.1.0'
-    junitJupiterVersion = '5.1.0'
-    mockkVersion = '1.7.15'
-    assertkVersion = '0.9'
-    detektVersion = '1.0.0-RC16'
-}