add changelog entry for #454
add changelog entry for #454
reinteractive/ransack,avit/ransack,amboxer21/ransack,laserlemon/ransack,mariorcardoso/ransack,johan--/ransack,outstand/ransack,Mario245/ransack,vaski/ransack,martndemus/ransack,activerecord-hackery/ransack,AndrewSwerlick/ransack,roman-franko/ransack,Eric-Guo/ransack,nagyt234/ransack,guilleva/ransack