Updated the Redmine howto to cover how to upgrade the version.
Updated the Redmine howto to cover how to upgrade the version.

kaze/paasmaker,paasmaker/paasmaker,kaze/paasmaker,kaze/paasmaker,paasmaker/paasmaker,paasmaker/paasmaker,paasmaker/paasmaker,kaze/paasmaker,kaze/paasmaker,paasmaker/paasmaker