ChangeLog: update to 0.4.7

diff --git a/ChangeLog b/ChangeLog
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+++ b/ChangeLog
@@ -1,3 +1,90 @@
+2018-09-22 Paul Brossier <piem@aubio.org>
+
+       [ Overview ]
+
+       * VERSION: bump to 0.4.7
+       * src/spectral/dct.h: add dct type II object with optimised versions
+       * src/io/, src/notes/, src/pitch: prevent crashes on corrupted files
+       * examples/: fix jack midi output, improve messages when jack disabled
+       * python/: add dct support, minor bug fixes tests and demos
+       * wscript: improve support for BLAS/ATLAS
+
+       [ Library fixes ]
+
+       * src/pitch/pitchyinfft.c: fix out of bound read when samplerate > 50kHz
+       thanks to @fCorleone (closes #189, CVE-2018-14523, debian #904906)
+       * src/notes/notes.c: bail out if pitch creation failed (see #188)
+       * src/io/source_wavread.c:
+        - also exit if samplerate is negative (closes #188, CVE-2018-14522,
+        debian #904907)
+        - add some input validation (closes #148 and #158, CVE-2017-17054,
+        debian #883355)
+       * src/io/source_avcodec.c:
+        - give up if resampling context failed opening (see #137, closes #187,
+        CVE-2018-14521, debian #904908)
+        - give up reading file if number of channel changes during stream (closes
+        #137, CVE-2017-17554, debian #884237)
+        - make sure libavutil > 52 before checking avFrame->channels (see #137)
+        - fix build with ffmpeg 4.0, thanks to @jcowgill (closes #168, #173)
+        - avoid deprecated call for ffmpeg >= 4.0
+       * src/onset/onset.c: add dummy default parameters for wphase (closes #150)
+
+       [ Tools ]
+
+       * examples/parse_args.h: hide jack options if not available, improve error
+       message (closes #182)
+       * examples/utils.h: process_block returns void
+       * examples/utils.c: fix examples failing to send more than one JACK midi
+       event per frame, thanks to @cyclopsian (closes #201)
+
+       [ New features ]
+
+       * src/spectral/dct.h: add dct type II object with implementation factory
+       * src/spectral/dct_plain.c: add plain dct implementation
+       * src/spectral/dct_ooura.c: add ooura implementation
+       * src/spectral/dct_fftw.c: add fftw implementation
+       * src/spectral/dct_ipp.c: add ipp version
+       * src/spectral/dct_accelerate.c: add vdsp/accelerate dct
+       * tests/src/spectral/test-dct.c: check reconstruction works
+       * src/spectral/mfcc.c: use new dct to compute mfcc
+
+       [ Library internals ]
+
+       * src/aubio_priv.h: avoid hard-coded undefs, split BLAS and ATLAS support,
+       add vdsp scalar add and multiply
+
+       [ Build system ]
+
+       * wscript:
+        - add options to disable examples and tests
+        - detect includes for openblas/libblas/atlas
+       * scripts/get_waf.sh: bump to 2.0.11, verify signature if gpg available
+       * python/lib/gen_external.py: pass '-x c' to emcc only
+
+       [ Python ]
+
+       * python/lib/gen_code.py: add support for rdo methods
+       * python/tests/test_dct.py: add tests for new dct
+       * python/demos/demo_pitch_sinusoid.py: use // to yield an integer, fixing
+       demo on py3, thanks to @ancorcruz (closes #176)
+       * python/ext/py-musicutils.*: add shift(fvec) and ishift(fvec)
+       * python/tests/test_fvec_shift.py: add tests for shift() and ishift()
+       * python/lib/aubio/cmd.py: fix typo in comment
+
+       [ Documentation ]
+
+       * README.md, doc/statuslinks.rst: use latest for commits-since
+       * examples/parse_args.h: add yinfast to pitch algorithms
+       * doc/requirements.rst: add some blas documentation
+       * doc/requirements.rst: split media/optimisation libraries
+       * doc/develop.rst: fixed spelling error, thanks to Jon Williams (closes #161)
+       * doc/aubio{pitch,notes}.txt: add yinfast to list of pitch methods
+
+       [ Continuous integration ]
+
+       * .travis.yml: remove xcode8.2 builds, group osx, add alias pip=pip2
+       * .appveyor.yml: upgrade pip first, always use python -m pip
+

 2017-10-02 Paul Brossier <piem@aubio.org>
 
        [ Overview ]
 2017-10-02 Paul Brossier <piem@aubio.org>
 
        [ Overview ]