[MWRAPPER-41] fix missing goals documentation (+ small improvements)

Author: hboutemy

maven-wrapper-distribution/src/site/apt/index.apt.vm

@@ -37,15 +37,15 @@ mvnw.cmd
 
  but every distribution has specific content to manage different strategies to get {{{../maven-wrapper/}<<<maven-wrapper.jar>>>}}:
 
- - <<<script>>> (default): <<<mvnw>>>/<<<mvnw.cmd>>> scripts will download {{{../maven-wrapper/}<<<maven-wrapper.jar>>>}} with <<<wget>>> or <<<curl>>> on Unix or PowerShell on Windows
+ - <<<script>>>: <<<mvnw>>>/<<<mvnw.cmd>>> scripts will download {{{../maven-wrapper/}<<<maven-wrapper.jar>>>}} with <<<wget>>> or <<<curl>>> on *nix, or PowerShell on Windows
 
- - <<<bin>>>: no need to download <<<maven-wrapper.jar>>> binary, it is directly provided and used from project source tree:
+ - <<<bin>>> (default): no need to download <<<maven-wrapper.jar>>> binary, it is directly provided and used from project source tree (if stored in source control):
 
 ----
 .mvn/wrapper/maven-wrapper.jar
 ----
 
- - <<<source>>>: <<<mvnw>>>/<<<mvnw.cmd>>> scripts will compile <<<MavenWrapperDownloader.java>>> source then run the class to download {{{../maven-wrapper/}<<<maven-wrapper.jar>>>}}:
+ - <<<source>>>: on *nix, if <<<wget>>> and <<<curl>>> are not availabe, <<<mvnw>>> script will compile <<<MavenWrapperDownloader.java>>> source then run the class to download {{{../maven-wrapper/}<<<maven-wrapper.jar>>>}}:
 
 ----
 .mvn/wrapper/MavenWrapperDownloader.java

maven-wrapper-plugin/pom.xml

@@ -100,6 +100,15 @@ under the License.
     </plugins>
   </build>
 
+  <reporting>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-plugin-plugin</artifactId>
+      </plugin>
+    </plugins>
+  </reporting>
+
   <profiles>
     <profile>
       <id>run-its</id>

maven-wrapper-plugin/src/site/markdown/index.md.vm

@@ -24,8 +24,8 @@ Goals Overview
 --------------
 
 
- * [wrapper:wrapper](./wrapper-mojo.html) is the default goal invoked during the 
-   `wrapper` phase. It downloads and unpacks the maven-wrapper distribution,
+ * [wrapper:wrapper](./wrapper-mojo.html) is the default goal, invoked during the 
+   `wrapper` phase in Maven 4. It downloads and unpacks the maven-wrapper distribution,
 
 Usage
 -----