Dependency updates

pom.xml

@@ -103,11 +103,12 @@
     <javassist.version>3.20.0-GA</javassist.version>
     <javax.servlet-api.version>3.1.0</javax.servlet-api.version>
     <javax.ws.rs.version>2.0.1</javax.ws.rs.version>
+    <!-- jetty 9.3.x requires JDK8 -->
     <jetty.version>9.2.14.v20151106</jetty.version>
     <jodatime.version>2.9.2</jodatime.version>
     <junit.version>4.12</junit.version>
     <lifecycle-mapping.version>1.0.0</lifecycle-mapping.version>
-    <logback-classic.version>1.1.3</logback-classic.version>
+    <logback-classic.version>1.1.5</logback-classic.version>
     <maven-clean.version>3.0.0</maven-clean.version>
     <maven-cobertura.version>2.7</maven-cobertura.version>
     <maven-compiler.version>3.5</maven-compiler.version>
@@ -136,14 +137,14 @@
     <mysql.version>5.1.38</mysql.version>
     <nexus-staging-maven.version>1.6.6</nexus-staging-maven.version>
     <nitor-matchers.version>1.3</nitor-matchers.version>
-    <postgresql.version>9.4.1207.jre7</postgresql.version>
+    <postgresql.version>9.4.1208.jre7</postgresql.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-    <slf4j.version>1.7.14</slf4j.version>
-    <spring.version>4.2.4.RELEASE</spring.version>
+    <slf4j.version>1.7.18</slf4j.version>
+    <spring.version>4.2.5.RELEASE</spring.version>
     <swagger.version>1.5.7</swagger.version>
     <swagger2markup.version>0.9.2</swagger2markup.version>
-    <jersey.version>2.22.1</jersey.version>
+    <jersey.version>2.22.2</jersey.version>
     <validation.api.version>1.1.0.Final</validation.api.version>
     <versions-maven-plugin.version>2.2</versions-maven-plugin.version>
   </properties>