#110 Removed XML definitions
#115 Added Container::has() method
Removed unnecessary test
#122 Removed Json definition support
Merge remote-tracking branch 'origin/4.0' into 4.0
4.0 changelog
Removed deprecated ContainerSingleton
Removed YAML definitions
Started the definition refactoring for 4.0
Definition refactoring
Fixing tests
Fixing tests
Fixed some tests
Fixed some tests
Fixed some tests
Fixed some tests
Change log
Removed DefinitionFileLoader since it's only PHP arrays now
Fixed test
Lazy injections declared at class level