Upgraded to work with the Eventuate client framework version 0.12

See http://eventuate.io/docs/java/spring-configuration.html for details on new configuration properties.
Upgraded to Spring Boot 1.2.8
Misc changes to build scripts

java-spring/common-backend/src/main/resources/logback.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+
+   <!-- [%thread] -->
+
+  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+    <layout class="ch.qos.logback.classic.PatternLayout">
+      <Pattern>%d{HH:mm:ss.SSS}  %-5level %logger{36} - %msg%n</Pattern>
+    </layout>
+  </appender>
+
+  <root level="error">
+    <appender-ref ref="STDOUT" />
+  </root>
+
+  <logger name="org.springframework" level='info'>
+  </logger>
+
+  <logger name="net.chrisrichardson.eventstore.client" level='info'>
+  </logger>
+
+</configuration>