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Changelog
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2.1.0 (2014-08-17)
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* Added an InflateStream to inflate gzipped or deflated content.
* Added ``flush`` to stream wrapper.
* Added the ability to easily register the GuzzleStreamWrapper if needed.

2.0.0 (2014-08-16)
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* Deprecated functions.php and moved all of those methods to
  ``GuzzleHttp\Streams\Utils``. Use ``GuzzleHttp\Stream\Stream::factory()``
  instead of ``GuzzleHttp\Stream\create()`` to create new streams.
* Added ``flush()`` to ``StreamInterface``. This method is used to flush any
  underlying stream write buffers.
* Added ``FnStream`` to easily decorate stream behavior with callables.
* ``Utils::hash`` now throws an exception when the stream cannot seek to 0.

1.5.1 (2014-09-10)
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* Stream metadata is grabbed from the underlying stream each time
  ``getMetadata`` is called rather than returning a value from a cache.
* Properly closing all underlying streams when AppendStream is closed.
* Seek functions no longer throw exceptions.
* LazyOpenStream now correctly returns the underlying stream resource when
  detached.

1.5.0 (2014-08-07)
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* Added ``Stream\safe_open`` to open stream resources and throw exceptions
  instead of raising errors.

1.4.0 (2014-07-19)
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* Added a LazyOpenStream

1.3.0 (2014-07-15)
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* Added an AppendStream to stream over multiple stream one after the other.

1.2.0 (2014-07-15)
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* Updated the ``detach()`` method to return the underlying stream resource or
  ``null`` if it does not wrap a resource.
* Multiple fixes for how streams behave when the underlying resource is
  detached
* Do not clear statcache when a stream does not have a 'uri'
* Added a fix to LimitStream
* Added a condition to ensure that functions.php can be required multiple times