remove trailing white-spaces from lib/redmine/pop3.rb
remove trailing white-spaces from lib/redmine/utils.rb
remove trailing white-spaces from lib/ar_condition.rb
remove trailing white-spaces from lib/redmine/access_control.rb
remove trailing white-spaces from lib/redmine/custom_field_format.rb
remove trailing white-spaces from lib/redmine/safe_attributes.rb
remove trailing white-spaces from lib/redmine/syntax_highlighting.rb
remove trailing white-spaces from lib/redmine/plugin.rb
remove trailing white-spaces from lib/redmine/hook.rb
remove trailing white-spaces from lib/redmine/mime_type.rb
