Merge pull request #238 from grlee77/r050

DOC: update release notes for v0.5.0

Author: rgommers

doc/release/0.5.0-notes.rst

@@ -191,6 +191,8 @@ Issues closed for v0.5.0
 - `#210 <https://github.com/PyWavelets/pywt/issues/210>`__: Run doctests in CI setup
 - `#211 <https://github.com/PyWavelets/pywt/issues/211>`__: Typo in iswt documentation
 - `#217 <https://github.com/PyWavelets/pywt/issues/217>`__: `blank_discrete_wavelet` does not properly intiailize some properties
+- `#231 <https://github.com/PyWavelets/pywt/issues/231>`__: I can't compile pywt
+
 
 Pull requests for v0.5.0
 ------------------------
@@ -235,3 +237,5 @@ Pull requests for v0.5.0
 - `#228 <https://github.com/PyWavelets/pywt/pull/228>`__: MAINT: avoid using a builtin as variable name in qmf().
 - `#229 <https://github.com/PyWavelets/pywt/pull/229>`__: DOC: add swtn, iswt, iswt2 to the API documentation
 - `#230 <https://github.com/PyWavelets/pywt/pull/230>`__: add demo of batch processing via concurrent.futures
+- `#234 <https://github.com/PyWavelets/pywt/pull/234>`__: ENH: coeffs_to_array supports axes argument as recently added to wavedec*
+- `#236 <https://github.com/PyWavelets/pywt/pull/236>`__: BLD: raise an ImportError if Cython should be installed but isn't.