Release managements tweaks

There are still some minor things to be tweaked for the next release:

• change the TO field in the email template to point to oak-dev@jackrabbit.apache.org

• change scp -r ${basedir}/target/${project.version} people.apache.org:public_html/oak/ to scp -r ${basedir}/target/${project.version} ${username}@people.apache.org:public_html/oak/

• add 'pedantic' profile for the verification script.
  Now there a warning: [WARNING] The requested profile "pedantic" could not be activated because it does not exist.

• tweak ${username} value: maybe rename to apache.username, and document how we can set it in maven settings.xml file in the cases where the local username is not the same as the apache username.

feel free to add more ideas here.