Update the build script to be more explicity about cleaning and running default tasks

Giving this another try with an auto-deploy

.travis.yml

@@ -3,6 +3,11 @@ language: java
 jdk:
 - oraclejdk7
 - oraclejdk8
+
+script:
+    - ./gradlew clean
+    - ./gradlew
+
 env:
   global:
     secure: MzcJafov6+fztyym0hZFTxjirTAgVFqFRO4pSSoDUZV71jHBYRKLmQxiaYpqdl9d7Q7Jz7UfNZRSisNwZQdeZjs0B9yJwy9m1mDlJaUXIWN/xzW04qPnZ5zxh1yJHK+UHIw5G2qRZSE42m9G3TSRBlUz6OMk+tr2UYErfnKzcsc=

build.gradle

@@ -7,7 +7,7 @@ apply plugin: 'application'
 
 group = "com.github.lookout"
 description = "A utility for monitoring the delay of Kafka consumers"
-version = '0.2.1'
+version = '0.2.2'
 mainClassName = 'com.github.lookout.verspaetung.Main'
 defaultTasks 'clean', 'check', 'assemble'
 
@@ -87,6 +87,11 @@ artifacts {
     archives shadowJar
 }
 
+/* Remove the "library" jar from the archives configuration so it's not
+ * published
+ */
+configurations.archives.artifacts.removeAll { it.archiveTask.is jar }
+
 
 bintray {
     user = project.bintrayUser