upgrade to spree 2.4
upgrade to spree 2.4

CJMrozek/spree_elasticsearch,GeekOnCoffee/spree_elasticsearch,jspizziri/spree_elasticsearch,sergei-matheson/spree_elasticsearch,GeekOnCoffee/spree_elasticsearch,GeekOnCoffee/spree_elasticsearch,casualsteps/spree_elasticsearch,Boomkat/spree_elasticsearch,CJMrozek/spree_elasticsearch,greendog/spree_elasticsearch,greendog/spree_elasticsearch,jspizziri/spree_elasticsearch,javereec/spree_elasticsearch,CJMrozek/spree_elasticsearch,greendog/spree_elasticsearch,vmatekole/spree_elasticsearch,javereec/spree_elasticsearch,casualsteps/spree_elasticsearch,jspizziri/spree_elasticsearch,casualsteps/spree_elasticsearch,vmatekole/spree_elasticsearch,javereec/spree_elasticsearch,sergei-matheson/spree_elasticsearch,vmatekole/spree_elasticsearch