Update tests from Spring 3.2.18.RELEASE to 4.3.12.RELEASE. Build passes
with 'mvn clean install'.
<logbackVersion>1.2.3</logbackVersion>
<jackson1Version>1.9.13</jackson1Version>
<jackson2Version>2.9.1</jackson2Version>
- <springVersion>3.2.18.RELEASE</springVersion>
+ <springVersion>4.3.12.RELEASE</springVersion>
<flumeVersion>1.7.0</flumeVersion>
<disruptorVersion>3.3.7</disruptorVersion>
<conversantDisruptorVersion>1.2.10</conversantDisruptorVersion> <!-- Version 1.2.11 requires Java 8 -->
