Gradle 5.1.1 (#512)

* Gradle 5.1.1

Artemis went to Gradle 5.1 and it seems to be doing fine.
This upgrades to Gradle 5.1.1 and removes the two deprecation warnings in the build script.

build.gradle

@@ -372,10 +372,10 @@ distZip {
 }
 
 task jacocoRootReport(type: org.gradle.testing.jacoco.tasks.JacocoReport) {
-  additionalSourceDirs = files(subprojects.sourceSets.main.allSource.srcDirs)
-  sourceDirectories = files(subprojects.sourceSets.main.allSource.srcDirs)
-  classDirectories = files(subprojects.sourceSets.main.output)
-  executionData = files(subprojects.jacocoTestReport.executionData)  //how to exclude some package/classes com.test.**
+  additionalSourceDirs.from files(subprojects.sourceSets.main.allSource.srcDirs)
+  sourceDirectories.from files(subprojects.sourceSets.main.allSource.srcDirs)
+  classDirectories.from files(subprojects.sourceSets.main.output)
+  executionData.from files(subprojects.jacocoTestReport.executionData) //how to exclude some package/classes com.test.**
   reports {
     xml.enabled true
     csv.enabled true

gradle/wrapper/gradle-wrapper.properties

@@ -2,4 +2,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip

settings.gradle

@@ -11,8 +11,6 @@
  * specific language governing permissions and limitations under the License.
  */
 
-enableFeaturePreview('STABLE_PUBLISHING')
-
 rootProject.name='pantheon'
 include 'acceptance-tests'
 include 'consensus'