shorten comment lines at test/ui/base.rb

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11975 e93f8b46-1217-0410-a6f0-8f06a7374b81
increase Capybara.default_wait_time from 7 to 12 (#12822)

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11976 e93f8b46-1217-0410-a6f0-8f06a7374b81