Some basics seem to work now like storing messages, addresses, inventory vectors etc.

inventory/build.gradle

@@ -9,5 +9,7 @@ repositories {
 
 dependencies {
     compile project(':domain')
-    testCompile group: 'junit', name: 'junit', version: '4.11'
+    compile 'com.h2database:h2:1.4.187'
+    compile 'org.flywaydb:flyway-core:3.2.1'
+    testCompile 'junit:junit:4.11'
 }