* 2.1.1 (2014-07-24)

 * fixed compiler warnings for the C extension
 * fixed code when dealing with circular references

* 2.1.0 (2014-06-24)

 * moved the Pimple to Pimple\Container (with a BC layer -- Pimple is now a
   deprecated alias which will be removed in Pimple 3.0)
 * added Pimple\ServiceProviderInterface (and Pimple::register())

* 2.0.0 (2014-02-10)

 * changed extend to automatically re-assign the extended service and keep it as shared or factory
   (to keep BC, extend still returns the extended service)
 * changed services to be shared by default (use factory() for factory
   services)

* 1.0.0

 * initial version
