Handle null value

Should handle null value here, or promotions usage limit should not be nullable.
Merge pull request #2059 from MichaelMackus/promotion-handle-null-usage-limit

Handle null value
Update liipimaginebundle 1.0 completed
Merge pull request #2082 from antonioperic/upgrade-liipimagebundle-10

Update liipimaginebundle 1.0 completed
Fix fatal error - LiipImagineBundle no longer has boolean parameter, absolute = true is now default
Merge pull request #2085 from MichaelMackus/issue-2084

Fix fatal error on cart page
fix-2054
Merge pull request #2086 from Joypricecorp/fix-2054-1

fix-2054
[Locale] Rework LocaleContext to allow usage different storages
Merge pull request #2088 from stloyd/feature/locale_storage

[Locale] Rework LocaleContext to allow usage different storages
Create new Storage component to reduce code duplication between components
Fix typos, add new methods to StorageInterface
Rework cart to use new CartContext and Storage component
Merge pull request #2089 from stloyd/feature/storage

Create new Storage component to reduce code duplication between components
Refactor code to properly work with domain managers not repositories while creating resources
Extract interface from DomainManager class.
Fix some service declarations.
Fix more code to match manager & repository split
Implement transactions in DomainManager, remove useless code & cleanup