Bump gradle version and dependency versions.

Author: JackOfMostTrades

build.gradle

@@ -20,7 +20,7 @@ repositories {
 dependencies {
     compile "org.ow2.asm:asm:6.2"
     compile "org.ow2.asm:asm-commons:6.2"
-    compile "com.google.guava:guava:24.1-jre"
+    compile "com.google.guava:guava:26.0-jre"
     compile 'org.slf4j:slf4j-api:1.7.25'
     compile 'org.slf4j:slf4j-log4j12:1.7.25'
 

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,5 @@
-#Tue Jun 12 00:14:02 PDT 2018
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.9-bin.zip
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.2.1-all.zip
+zipStoreBase=GRADLE_USER_HOME