Punq

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Fixes
Added handling for typing.ForwardRef

Breaking Changes
Added explicit `instance` kwarg to `register` which replaces the previous behaviour where
`container.register(Service, someInstance)` would register a concrete instance.
This fixes https://github.com/bobthemighty/punq/issues/6

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Feature
First automatic Travis deploy

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Basic resolution and registration works
Punq is almost certainly slow as a dog, non thread-safe, and prone to weird behaviour in the edge cases.

.. _0.2.0: https://github.com/bobthemighty/punq/compare/v0.1.2-alpha...v0.2
.. _0.2.1: https://github.com/bobthemighty/punq/compare/v0.2...v0.2.1
.. _0.3.0: https://github.com/bobthemighty/punq/compare/v0.2.1...v0.3.0
.. _0.4.0: https://github.com/bobthemighty/punq/compare/v0.3.0...v0.4.0
.. _0.4.1: https://github.com/bobthemighty/punq/compare/v0.4.0...v0.4.1
.. _0.6.0: https://github.com/bobthemighty/punq/compare/v0.4.1...v0.6.0
.. _Thielen B: https://github.com/FourSpotProject
.. _jbcpollak: https://github.com/jbcpollak