generate every Surefire artifact site in /surefire and redirect previous /plugins/maven-(surefire|failsafe|surefire-report)-plugin

Surefire generates site content dispatched in misc locations:

• /surefire
• /plugins/maven-surefire-plugin
• /plugins/maven-failsafe-plugin
• /plugins/maven-surefire-report-plugin

This will cause problems when we switch to svnpubsub+maven-scm-publish-plugin because this won't represent one unique svn commit

the build should deploy everything in /surefire and the site redirect from /plugins/<surefure plugins locations> to /surefire/<*>