JAVA-2844: Upgrade gradle and spotbugs to enable building with Java 10

Gradle is upgraded to 4.7
Spotbugs is upgraded to 3.1.2

Author: fhassak

build.gradle

@@ -36,7 +36,7 @@ buildscript {
         classpath 'org.kordamp.gradle:clirr-gradle-plugin:0.2.2'
         classpath 'com.netflix.nebula:gradle-extra-configurations-plugin:1.12.+'
         classpath 'com.bmuschko:gradle-nexus-plugin:2.2'
-        classpath "gradle.plugin.com.github.spotbugs:gradlePlugin:1.6.0"
+        classpath "gradle.plugin.com.github.spotbugs:spotbugs-gradle-plugin:1.6.1"
     }
 }
 
@@ -231,7 +231,7 @@ configure(subprojects.findAll { it.name != 'util' && it.name != 'mongo-java-driv
     spotbugs {
         excludeFilter = new File(configDir, 'findbugs-exclude.xml')
         sourceSets = [sourceSets.main]
-        toolVersion = '3.1.0'
+        toolVersion = '3.1.3'
     }
 
     codenarc {
@@ -315,7 +315,7 @@ def setJavaDocOptions(MinimalJavadocOptions options) {
 // Root project configuration           //
 //////////////////////////////////////////
 task wrapper(type: Wrapper) {
-    gradleVersion = '4.5.1'
+    gradleVersion = '4.7'
 }
 
 gradle.buildFinished { BuildResult result ->

gradle/wrapper/gradle-wrapper.jar

@@ -13,10 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-
-#Sun Feb 18 19:10:42 CET 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.5.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.7-bin.zip