Encapsulate sort_link parsing into its own class and
Encapsulate sort_link parsing into its own class and

expose only the minimum public methods needed.

reinteractive/ransack,laserlemon/ransack,martndemus/ransack,vaski/ransack,AndrewSwerlick/ransack,guilleva/ransack,outstand/ransack,avit/ransack,johan--/ransack,activerecord-hackery/ransack,Mario245/ransack,Eric-Guo/ransack,nagyt234/ransack,roman-franko/ransack,mariorcardoso/ransack