Updated dependencies, no need for new release yet

Author: rijnb

pom.xml

@@ -70,16 +70,19 @@
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <jdk.version>1.6</jdk.version>
 
+        <!-- libraries. -->
         <gson.version>2.3.1</gson.version>
         <jsr305.version>3.0.0</jsr305.version>
         <junit.version>4.12</junit.version>
         <log4j.version>1.2.17</log4j.version>
-        <slf4j.version>1.7.12</slf4j.version>
-        <nexus-staging-maven-plugin.version>1.6.5</nexus-staging-maven-plugin.version>
+        <slf4j.version>1.7.13</slf4j.version>
+
+        <!-- Modules. -->
+        <nexus-staging-maven-plugin.version>1.6.6</nexus-staging-maven-plugin.version>
         <maven-source-plugin.version>2.4</maven-source-plugin.version>
         <maven-javadoc-plugin.version>2.10.1</maven-javadoc-plugin.version>
         <maven-gpg-plugin.version>1.6</maven-gpg-plugin.version>
-        <maven-compiler-plugin.version>3.2</maven-compiler-plugin.version>
+        <maven-compiler-plugin.version>3.3</maven-compiler-plugin.version>
     </properties>
 
     <distributionManagement>