Merge topic branch t/misc into pu

The stuff in here is too small to get its own topic branch. The
commits are generally regarded as safe enough to be applied directly to
"master" without cooking in "next" first. However, if a commit induces
a merge conflict or is important enough to get mentioned in an item
of the NEWS file, the commit should get a dedicated topic branch.

Unlike most other topic branches, this branch never promotes to
"next". When a set of commits is ready to graduate to "master", the
branch is rebased onto "master" and its commits are re-ordered so that
the graduating commits appear at the beginning. The last such commit
is merged to "master". This always results in a fast-forward merge,
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<!-- No merge message -->

* refs/heads/t/misc:
  Move FOR_EACH_RECEIVER from recv.h to recv_common.c.
  send_common.c does not need afs.h.
  Speed up blob operations.
  vss: Make vss_next() and vss_repos() static.
  vss: Change vss_playing() and friends to return bool.
  wma: Use unsigned byte arrays.
  sched.h: Remove an unnecessary declaration.
  server: Delay vss shutdown in command handler context.

# Conflicts:
#	sched.h

diff --cc aft.c
Simple merge

diff --cc recv.h
index ffb62a97113e8d96f4e7d2e03386c523fdac8862,5c9bbef673147e89a43285669c89a3d600e18d8d..14666e7e24e60d599a9cdb851aa862c18fc45ef5
--- 1/recv.h
--- 2/recv.h
+++ b/recv.h
@@@ -102,11 -90,7 +102,8 @@@ struct receiver 
        (lls_uint32_val(0, RECV_CMD_OPT_RESULT(_recv, _opt, _lpr)))
  #define RECV_CMD_OPT_INT32_VAL(_recv, _opt, _lpr) \
        (lls_int32_val(0, RECV_CMD_OPT_RESULT(_recv, _opt, _lpr)))
 +/** \endcond */
  
- /** Iterate over all available receivers. */
- #define FOR_EACH_RECEIVER(i) for (i = 1; lls_cmd(i, recv_cmd_suite); i++)
- 
  int check_receiver_arg(const char *ra, struct lls_parse_result **lprp);
  void print_receiver_helps(bool detailed);
  int generic_recv_pre_monitor(struct sched *s, struct receiver_node *rn);

diff --cc send_common.c
Simple merge

diff --cc server.c
Simple merge