cleanup syntax of Relation#all at app/views/wiki/rename.html.erb

git-svn-id: http://svn.redmine.org/redmine/trunk@12591 e93f8b46-1217-0410-a6f0-8f06a7374b81
Rails4: replace deprecated Relation#count with finder options at ProjectsController#show

git-svn-id: http://svn.redmine.org/redmine/trunk@12592 e93f8b46-1217-0410-a6f0-8f06a7374b81