chore(dependencies): fix some accidental transitive dependencies (#863)

working on some cleanup in kork and testing it against various projects highlighed some sub-optimal
things in the dependency graph. Fixed those up by explicitly declaring some implementation dependencies
that were otherwise coming in as transitives of transitives of a kork module. Also cleaned up a few
spots where commons-lang 1 was used instead of commons-lang 3.

Also upgrades to latest gradle (5.5.1) to align with the version the spinnaker-gradle-plugin was
built against

gate-core/src/main/groovy/com/netflix/spinnaker/gate/security/anonymous/AnonymousConfig.groovy

@@ -21,7 +21,7 @@ import com.netflix.spinnaker.gate.security.SpinnakerAuthConfig
 import com.netflix.spinnaker.gate.services.CredentialsService
 import com.netflix.spinnaker.security.User
 import groovy.util.logging.Slf4j
-import org.apache.commons.lang.exception.ExceptionUtils
+import org.apache.commons.lang3.exception.ExceptionUtils
 import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean
 import org.springframework.context.annotation.Configuration

gate-web/src/main/groovy/com/netflix/spinnaker/gate/controllers/AuthController.groovy

@@ -22,7 +22,7 @@ import com.netflix.spinnaker.security.AuthenticatedRequest
 import com.netflix.spinnaker.security.User
 import groovy.util.logging.Slf4j
 import io.swagger.annotations.ApiOperation
-import org.apache.commons.lang.exception.ExceptionUtils
+import org.apache.commons.lang3.exception.ExceptionUtils
 import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.beans.factory.annotation.Value
 import org.springframework.security.access.prepost.PreAuthorize

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.5.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists