[VariationBundle] Improve code quality
Update README.md

Removed duplicate `have been`
Improve quality of most complex class/methods
Merge pull request #1412 from leettastic/patch-1

Update README.md
replace number_format with round

ref: https://github.com/Sylius/Sylius/issues/1410
replace number_format with round

https://github.com/Sylius/Sylius/issues/1410
Merge pull request #1404 from stloyd/feature/improve_quality

Improve code quality
Make fixtures easier to extend
Merge pull request #1381 from umpirsky/fix/extensible-fixtures

Make fixtures easier to extend
Merge pull request #1414 from smarques/bugfix_numberFormatInGatewayAction

Bugfix: number format in gateway action
Removed unused variables
allow to override label width in templates
Fix confirmation modal tests
sylius_product_variant table data update

According to this error

Twig_Error_Runtime: "An exception has been thrown during the rendering of a template ("Could not convert database value "" to Doctrine Type array") in "LVPWebBundle:Frontend/Product:_singleBox.html.twig"

sylius_product_variant table should be updated to fill the missing pricing_calculator and pricing_configuration datas.

This SQL update solve this migration problem
[CoreBundle] Add some data to Symfony WebProfiler toolbar
Compressed the png (lossless)
Merge pull request #4 from pborreli/patch-4

Compressed the png (lossless)
Merge pull request #1423 from psyray/patch-1

sylius_product_variant table data update
Merge pull request #1424 from stloyd/feature/toolbar

[CoreBundle] Add some data to Symfony WebProfiler toolbar
Split application Kernel and rename default one