Renaming SalesBundle to OrderBundle
Fixing last glitches
Fix some CS glitches, add missing phpdocs etc.
Rename SettingBundle default view to be consistent
Implement fluid interface in all entities

Currently the fluid interface of entities is inconsistent. This PR fixes this and adds missing phpdocs as well.
Fix spec folder name for OrderBundle
Merge pull request #554 from Richtermeister/fluid-interfaces

Implement fluid interface in all entities
Update changelogs for v0.6.0
Adjust README files along all bundles
[ci skip]
Handle deleted items properly in backend
Fix order number generation
Adjust .travis.yml files across the bundles
Update license files
Merge pull request #827 from stloyd/bugfix/travis

Adjust .travis.yml files across the bundles
Fix order sorting to prevent incorrect order number generation.

See https://github.com/Sylius/Sylius/pull/631
Make use of OrderItem::equals
Add merge method to Base OrderItemInterface

Signed-off-by: Benoît Burnichon <bburnichon@gmail.com>
Add Base OrderItem specs for merge implementation

Signed-off-by: Benoît Burnichon <bburnichon@gmail.com>
Add Order specs to use merge method of its items

Signed-off-by: Benoît Burnichon <bburnichon@gmail.com>