Add info on @was_new and @columns_updated instance variables to model_hooks RDoc
Add info on @was_new and @columns_updated instance variables to model_hooks RDoc

yazshel/sequel,t-morgan/sequel,chef/sequel,nju520/sequel,offshore-safety/sequel,t-morgan/sequel,beni55/sequel,mpalmer/sequel,nicohvi/sequel,seeARMS/sequel,beni55/sequel,gferguson-gd/sequel,dennis-d/custom_sequel,davidbegin/sequel,bigfix/sequel,pfarrell/sequel,uhoh-itsmaciek/sequel,dennis-d/custom_sequel,freshpay/sequel,pfarrell/sequel,offshore-safety/sequel,yazshel/sequel,mpalmer/sequel,uhoh-itsmaciek/sequel,offshore-safety/sequel,Marketcircle/sequel,nju520/sequel,knut2/sequel,davidbegin/sequel,seeARMS/sequel,freshpay/sequel,knut2/sequel,nicohvi/sequel,reubano/sequel,gferguson-gd/sequel,reubano/sequel