Updated dependencies

Author: rijnb

pom.xml

@@ -85,7 +85,7 @@
         <maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
 
         <!-- libraries. -->
-        <gson.version>2.6.2</gson.version>
+        <gson.version>2.7</gson.version>
         <jsr305.version>3.0.1</jsr305.version>
         <junit.version>4.12</junit.version>
         <log4j.version>1.2.17</log4j.version>