Create a jar file for pwm classes and resources.

Instead of putting compiled classes and resources in the folder: WEB-INF/classes, they now get archived into the jar file: WEB-INF/lib/pwm-1.8.0-SNAPSHOT.jar.

pom.xml

@@ -104,6 +104,14 @@
                     </execution>
                 </executions>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-war-plugin</artifactId>
+                <version>2.6</version>
+                <configuration>
+                    <archiveClasses>true</archiveClasses>
+                </configuration>
+            </plugin>
         </plugins>
     </build>