Update dependencies to latest versions

Author: sinwe

build.gradle

@@ -1,5 +1,5 @@
 group 'io.projectreactor'
-description = 'A scala adapter for Reactor Flux and Mono'
+description = 'A scala extension for Reactor Flux and Mono'
 
 apply plugin: 'scala'
 apply plugin: "com.github.maiflai.scalatest"
@@ -18,8 +18,6 @@ repositories {
 
 ext {
     reactorVersion = "3.1.1.RELEASE"
-    baseScalaVersion = "2.11"
-
     scoverageVersion = "1.3.0"
 }
 
@@ -35,7 +33,7 @@ dependencies {
     testCompile "org.scalatest:scalatest_%%:3.0.3"
     testRuntime "org.pegdown:pegdown:1.6.0"
     testCompile group: 'io.projectreactor', name: 'reactor-test', version: "$reactorVersion"
-    testCompile 'org.mockito:mockito-core:2.11.0'
+    testCompile 'org.mockito:mockito-core:2.12.0'
 
     scoverage "org.scoverage:scalac-scoverage-plugin_%%:$scoverageVersion", "org.scoverage:scalac-scoverage-runtime_%%:$scoverageVersion"
 }
@@ -50,13 +48,13 @@ buildscript {
     }
 
     dependencies {
-        classpath "gradle.plugin.com.github.maiflai:gradle-scalatest:0.16"
+        classpath "gradle.plugin.com.github.maiflai:gradle-scalatest:0.18"
         classpath "gradle.plugin.org.scoverage:gradle-scoverage:2.1.0"
         classpath 'net.researchgate:gradle-release:2.6.0'
         classpath 'io.codearte.gradle.nexus:gradle-nexus-staging-plugin:0.11.0'
-        classpath 'org.owasp:dependency-check-gradle:3.0.1'
+        classpath 'org.owasp:dependency-check-gradle:3.0.2'
         classpath "com.adtran:scala-multiversion-plugin:1.+"
-        classpath 'com.github.ben-manes:gradle-versions-plugin:0.15.0'
+        classpath 'com.github.ben-manes:gradle-versions-plugin:0.17.0'
     }
 }