[SyliusWebBundle] Fix wrong volume based price form display on product
form
Merge pull request #1870 from psyray/fix-volume-based-pricing-form

[SyliusWebBundle] Fix wrong volume based price form display on product
minor tweaks
Merge pull request #1877 from cordoval/clean-up

minor tweaks
Merge branch 'master' of https://github.com/liverbool/Sylius