add empty block
add empty block documentation
empty block: remove unneeded BlockServiceInterface implementation
Merge pull request #48 from rmsint/empty_block

add empty block
Cache: add block to recorder to be have contextual keys for the cache service in the BlockExtension
Merge pull request #49 from rmsint/caching_recorder

Cache: add block to recorder to be have contextual keys
Fix PHPDoc
Merge pull request #50 from marekkalnik/patch-1

Fix PHPDoc
Fixing ServiceLoaderTest, avoiding PHPError because 'type' wasn't set.
Merge pull request #52 from Bladrak/FixUnitTestServiceLoader

Fix unit test service loader
Allowing cachable on dynamically created blocks (through twig helper).
Merge pull request #51 from Bladrak/FixCacheDynamicBlock

Allowing cachable on dynamically created blocks (through twig helper).
Apply PHP-CS-Fixer
Add branch alias on composer.json
Update branch to use the alias 2.1.x-dev
update composer.json
Add class to compile
Add branch alias master => 2.2.x
Add missing classes to compile
Merge branch '2.1'