replace tab to space at ApplicationHelper

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@12074 e93f8b46-1217-0410-a6f0-8f06a7374b81
remove trailing white-spaces from ApplicationHelper

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@12075 e93f8b46-1217-0410-a6f0-8f06a7374b81