Remove '-SNAPSHOT' from release and update plugins & test dependencies.

Author: kwwall

pom.xml

@@ -3,7 +3,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.owasp.esapi</groupId>
     <artifactId>esapi</artifactId>
-    <version>2.5.3.1-SNAPSHOT</version>
+    <version>2.5.3.1</version>
     <packaging>jar</packaging>
 
     <distributionManagement>
@@ -134,8 +134,8 @@
         <version.findsecbugs>2.0.0-M3</version.findsecbugs>
         <version.fluido>2.0.0-M8</version.fluido>
         <version.powermock>2.0.9</version.powermock>
-        <version.spotbugs>4.8.1</version.spotbugs>
-        <version.spotbugs.maven>4.8.1.0</version.spotbugs.maven>
+        <version.spotbugs>4.8.2</version.spotbugs>
+        <version.spotbugs.maven>4.8.2.0</version.spotbugs.maven>
         <version.surefire>3.2.2</version.surefire>
         <project.java.target>1.8</project.java.target>
             <!-- TODO: Be sure to update. Should be date of previous official release -->
@@ -296,7 +296,7 @@
         <dependency>
             <groupId>commons-codec</groupId>
             <artifactId>commons-codec</artifactId>
-            <version>1.15</version>
+            <version>1.16.0</version>
             <scope>test</scope>
         </dependency>
         <dependency>
@@ -689,7 +689,7 @@
                      The skin is referenced in src/site/site.xml. -->
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-site-plugin</artifactId>
-                <version>4.0.0-M11</version>
+                <version>4.0.0-M12</version>
                 <dependencies>
                     <dependency>
                         <groupId>org.apache.maven.skins</groupId>