[MNG-5567] Zip files are not included in classpaths at all

By definition of the classpath [1], JAR and Zip files are valid
compressed files. Zips are likely to contain resources shared
around. This totally relieves of unpacking stuff and readding
to the classpath and support what the JVM provided by defeault.
Sharing resources will just work.

[1] http://docs.oracle.com/javase/8/docs/technotes/tools/windows/classpath.html#A1100592
diff --git a/maven-core/src/main/resources/META-INF/plexus/artifact-handlers.xml b/maven-core/src/main/resources/META-INF/plexus/artifact-handlers.xml
index 2f26ce2..92ddaec 100644
--- a/maven-core/src/main/resources/META-INF/plexus/artifact-handlers.xml
+++ b/maven-core/src/main/resources/META-INF/plexus/artifact-handlers.xml
@@ -190,5 +190,18 @@
       </configuration>
     </component>
 
+    <!--
+     | ZIP
+     |-->
+    <component>
+      <role>org.apache.maven.artifact.handler.ArtifactHandler</role>
+      <role-hint>zip</role-hint>
+      <implementation>org.apache.maven.artifact.handler.DefaultArtifactHandler</implementation>
+      <configuration>
+        <type>zip</type>
+        <addedToClasspath>true</addedToClasspath>
+      </configuration>
+    </component>
+
   </components>
 </component-set>
diff --git a/maven-core/src/site/apt/artifact-handlers.apt b/maven-core/src/site/apt/artifact-handlers.apt
index 299d7d8..9475ef7 100644
--- a/maven-core/src/site/apt/artifact-handlers.apt
+++ b/maven-core/src/site/apt/artifact-handlers.apt
@@ -57,3 +57,5 @@
 *--------------------+---------------+------------+------------+-----------+---------------------+-----------------------+
 | <<<javadoc>>>      | <<<javadoc>>> | <<<jar>>>  | <= type>   | java      | <<<true>>>          |                       |
 *--------------------+---------------+------------+------------+-----------+---------------------+-----------------------+
+| <<<zip>>>          | <= type>   | <= type>   |               | none      | <<<true>>>          |                       |
+*--------------------+------------+------------+---------------+-----------+---------------------+-----------------------+