Improve poms to comply with Maven OSS submission requirements

webgoat-classloader/pom.xml

@@ -1,9 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+
     <name>webgoat-classloader</name>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>webgoat-classloader</artifactId>
     <packaging>jar</packaging>
+
     <parent>
         <groupId>org.owasp.webgoat</groupId>
         <artifactId>webgoat-parent</artifactId>
@@ -15,7 +18,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.1</version>
+                <version>${maven-compiler-plugin.version}</version>
                 <configuration>
                     <source>1.7</source>
                     <target>1.7</target>
@@ -29,9 +32,8 @@
         <dependency>
             <groupId>org.apache.tomcat</groupId>
             <artifactId>tomcat-catalina</artifactId>
-            <version>7.0.47</version>
+            <version>${tomcat-catalina.version}</version>
         </dependency>
     </dependencies>
 
-
 </project>