Use #reset instead of #reload
Use #reset instead of #reload

This was using `reload` previously because CollectionProxy#reset is
broken in Rails < 4.1.0.  Solidus now has a more recent version of
Rails so we can update this.

See https://github.com/solidusio/solidus/commit/1428d2d#commitcomment-11866528
and https://github.com/rails/rails/commit/43675f0

xuewenfei/solidus,bonobos/solidus,bonobos/solidus,scottcrawford03/solidus,jordan-brough/solidus,athal7/solidus,devilcoders/solidus,lsirivong/solidus,jsurdilla/solidus,Arpsara/solidus,scottcrawford03/solidus,Arpsara/solidus,richardnuno/solidus,pervino/solidus,jordan-brough/solidus,lsirivong/solidus,bonobos/solidus,xuewenfei/solidus,jordan-brough/solidus,scottcrawford03/solidus,ckk-scratch/solidus,forkata/solidus,grzlus/solidus,Senjai/solidus,Senjai/solidus,scottcrawford03/solidus,richardnuno/solidus,forkata/solidus,grzlus/solidus,bonobos/solidus,pervino/solidus,forkata/solidus,athal7/solidus,grzlus/solidus,lsirivong/solidus,Arpsara/solidus,jsurdilla/solidus,jordan-brough/solidus,athal7/solidus,jsurdilla/solidus,Senjai/solidus,pervino/solidus,devilcoders/solidus,richardnuno/solidus,forkata/solidus,xuewenfei/solidus,athal7/solidus,lsirivong/solidus,xuewenfei/solidus,devilcoders/solidus,Arpsara/solidus,devilcoders/solidus,grzlus/solidus,jsurdilla/solidus,richardnuno/solidus,ckk-scratch/solidus,ckk-scratch/solidus,pervino/solidus,Senjai/solidus,ckk-scratch/solidus