Upgrade logback dependency

Fixes CVE-2017-5929

QA-7800

Author: amedee

pom.xml

@@ -87,7 +87,7 @@
     <jfreechart.version>1.0.19</jfreechart.version>
     <junit.version>4.12</junit.version>
     <junitparams.version>1.0.4</junitparams.version>
-    <logback.version>1.1.3</logback.version>
+    <logback.version>1.2.3</logback.version>
     <maven.compiler.source>1.7</maven.compiler.source>
     <maven.compiler.target>1.7</maven.compiler.target>
     <maven.jar.version>3.1.0</maven.jar.version>