Refactor mantis-publish-core 3rd party dependency specifications

first pass at refactor 3rd party dependency specifications for mantis-publish-core and corresponding changes to root build.gradle. Name changes to make version vars consistent. (issue Netflix#345)

build.gradle

@@ -55,7 +55,7 @@ ext.versions = [
         junit5   : "5.4.+",
         kafkaVersion : "2.2.+",
         mesosVersion : '1.7.2',
-        mockito  : "2.0.+",
+        mockito  : "2.18.+",
         mockito3 : "3.+",
         mqlVersion : '3.4.+',
         nettyVersion : "4.1.34.Final",
@@ -141,7 +141,8 @@ ext.libraries = [
         slf4jLog4j12   : "org.slf4j:slf4j-log4j12:${versions.slf4j}",
         snappyJava     : "org.xerial.snappy:snappy-java:${versions.snappyVersion}",
         spectatorApi   : "com.netflix.spectator:spectator-api:${versions.spectator}",
-        spectatorApiv0 : "com.netflix.spectator:spectator-api:0.82.+",
+        spectatorApi0 : "com.netflix.spectator:spectator-api:0.134.0",
+        spectatorExtIpc0: "com.netflix.spectator:spectator-ext-ipc:0.134.0",
         spotifyFutures : "com.spotify:completable-futures:0.3.1",
         testng         : "org.testng:testng:${versions.testngVersion}",
         vavr           : "io.vavr:vavr:${versions.vavr}",

mantis-connectors/mantis-connector-kafka/build.gradle

@@ -24,7 +24,7 @@ dependencies {
     api libraries.kafkaClients
 
     api libraries.rxJava
-    api libraries.spectatorApiv0
+    api libraries.spectatorApi0
     api libraries.archaius2Api
     api libraries.archaius2Core
 

mantis-publish/mantis-publish-core/build.gradle

@@ -13,26 +13,20 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-ext {
-    archaiusVersion = 'latest.release'
-    versionMockito = '2.18.+'
-    mqlVersion = '3.2.2' // todo: builds correctly, bump version later
-    spectatorVersion = '0.134.0'
-}
 
 dependencies {
-    implementation "io.mantisrx:mql-jvm:$mqlVersion"
+    implementation libraries.mqlJvm
     implementation project(":mantis-common-serde")
     api project(":mantis-discovery-proto")
 
-    api "com.netflix.spectator:spectator-api:$spectatorVersion"
-    implementation "com.netflix.spectator:spectator-ext-ipc:$spectatorVersion"
+    api libraries.spectatorApi0
+    implementation libraries.spectatorExtIpc0
 
-    api "com.netflix.archaius:archaius2-api:$archaiusVersion"
-    implementation "com.netflix.archaius:archaius2-core:$archaiusVersion"
+    api libraries.archaius2Api
+    implementation libraries.archaius2Core
 
-    testImplementation "com.github.tomakehurst:wiremock-jre8:2.21.0"
-    testCompileOnly "com.netflix.archaius:archaius2-core:$archaiusVersion"
+    testImplementation libraries.wiremock
+    testCompileOnly libraries.archaius2Core
 
     implementation libraries.slf4jApi