Makes autocomplete accept issue id with hash.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11292 e93f8b46-1217-0410-a6f0-8f06a7374b81
Use database LOWER instead of #downcase.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11293 e93f8b46-1217-0410-a6f0-8f06a7374b81