Change application's version to v1.5.7
Change application's version to v1.5.7

pamil/Sylius,diimpp/Sylius,lchrusciel/Sylius,pjedrzejewski/Sylius,mbabker/Sylius,Zales0123/Sylius,foobarflies/Sylius,mbabker/Sylius,SyliusBot/Sylius,antonioperic/Sylius,SyliusBot/Sylius,pjedrzejewski/Sylius,loic425/Sylius,diimpp/Sylius,lchrusciel/Sylius,SyliusBot/Sylius,foobarflies/Sylius,101medialab/Sylius,Sylius/Sylius,GSadee/Sylius,loic425/Sylius,kayue/Sylius,Sylius/Sylius,kayue/Sylius,loic425/Sylius,101medialab/Sylius,101medialab/Sylius,pamil/Sylius,Arminek/Sylius,antonioperic/Sylius,Zales0123/Sylius,pjedrzejewski/Sylius,Zales0123/Sylius,GSadee/Sylius,Arminek/Sylius,mbabker/Sylius,foobarflies/Sylius,mbabker/Sylius,lchrusciel/Sylius,pamil/Sylius,Arminek/Sylius,kayue/Sylius,antonioperic/Sylius,GSadee/Sylius,Sylius/Sylius,diimpp/Sylius,foobarflies/Sylius,pjedrzejewski/Sylius