[2.x] Pre-release tidy-up (#1011)

Changes:
* no source change
* (build) expel all versions from child modules: they must be all top level depMgmt or pluginMgmt
* (build) Top POM contains GAVs while child modules GA+scope. This tremendously simplifies maintenance.
* (javadoc) fix Javadoc errors
* (build) remove obsolete profiles and mr-JARs, project is 17+

Updates:
* maven wrapper 3.3.2 w/ scripts

build-plugin/pom.xml

@@ -30,31 +30,6 @@
   <packaging>maven-plugin</packaging>
   <name>Maven Daemon - Documentation Maven Plugin</name>
 
-  <properties>
-    <maven.compiler.target>11</maven.compiler.target>
-    <maven.compiler.source>11</maven.compiler.source>
-
-    <roaster.version>2.29.0.Final</roaster.version>
-    <maven.version>3.9.6</maven.version>
-    <maven.plugin-tools.version>3.13.0</maven.plugin-tools.version>
-  </properties>
-
-  <dependencyManagement>
-    <dependencies>
-      <dependency>
-        <groupId>org.apache.maven</groupId>
-        <artifactId>maven-plugin-api</artifactId>
-        <version>${maven.version}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.apache.maven.plugin-tools</groupId>
-        <artifactId>maven-plugin-annotations</artifactId>
-        <version>${maven.plugin-tools.version}</version>
-      </dependency>
-
-    </dependencies>
-  </dependencyManagement>
-
   <dependencies>
     <dependency>
       <groupId>org.apache.maven</groupId>
@@ -70,9 +45,7 @@
     <dependency>
       <groupId>org.jboss.forge.roaster</groupId>
       <artifactId>roaster-jdt</artifactId>
-      <version>${roaster.version}</version>
     </dependency>
-
   </dependencies>
 
   <build>
@@ -81,7 +54,6 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-plugin-plugin</artifactId>
-          <version>${maven.plugin-tools.version}</version>
         </plugin>
       </plugins>
     </pluginManagement>