Fix incorrect javadoc link.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1621012 13f79535-47bb-0310-9956-ffa450edef68
Add @return description to javadoc.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1621013 13f79535-47bb-0310-9956-ffa450edef68
Fix javadoc markup.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1621014 13f79535-47bb-0310-9956-ffa450edef68
Fix javadoc warning.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1621015 13f79535-47bb-0310-9956-ffa450edef68
Fix link to NoSQL javadocs.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1621016 13f79535-47bb-0310-9956-ffa450edef68
Add missing @return info.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1621017 13f79535-47bb-0310-9956-ffa450edef68
Fix link to PluginManager.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1621018 13f79535-47bb-0310-9956-ffa450edef68
Fix javadoc links to 1.2.x.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1621019 13f79535-47bb-0310-9956-ffa450edef68