Merge topic branch t/wmadec into master

A few patches which remove unused code from the wma decoder and audio
format handler. Notably, noise coding was removed completely since
it was only used for unusual bit rates. Most likely, it never worked
in the first place.

* refs/heads/t/wmadec:
  wmadec: Fix typo in comment.
  wmadec: Remove a stale comment in wma_init().
  wmadec: Kill pointless start/end computations.
  wmadec: Remove noise coding.
  wmadec: Simplify wma_init().
  wmadec: Remove fft().

diff --cc NEWS.md
index cb1a4a3544730bb6d7f66adbc9e1bc0ab3c8b63d,1ed27260e61f39c74b4f41f305755d8a9d0cd9d2..68c8a898bcab711b6a921a66f36c40a629f1c75a
--- 1/NEWS.md
--- 2/NEWS.md
+++ b/NEWS.md
@@@ -2,14 -2,9 +2,15 @@@ NEW
  ====
  
  ------------------------------------------
 -?.?.? (to be announced) "pulsating plasma"
 +0.7.5 (to be announced) "pulsating plasma"
  ------------------------------------------
  
 +- A bunch of build system improvements and cleanups.
 +- The special argument '-' to the select subcommand now reactivates
 +  the previous mood or playlist.
++- Cleanup of the wma decoder.
 +
 +Download:
  [tarball](./releases/paraslash-git.tar.xz)
  
  ----------------------------------------

diff --cc imdct.c
Simple merge

diff --cc wmadec_filter.c
Simple merge