Merge branch 'refs/heads/t/ls-p_deprecation'

Preparation for changing the semantics of the -p option to com_ls()
of para_server. Cooking for four months.

* refs/heads/t/ls-p_deprecation:
  server: Deprecate ls -p.

diff --cc NEWS.md
index 38d1d5b0664e26da404bbae9059e3142949fe5fe,71eb6cb26d3a333f8840f78848ad74986f689754..37d855b9cb22edeff12b0a9bc09f23dda39ef608
--- 1/NEWS.md
--- 2/NEWS.md
+++ b/NEWS.md
@@@ -1,17 -1,6 +1,19 @@@
  NEWS
  ====
  
 +------------------------------------------
 +0.5.7 (to be announced) "semantic density"
 +------------------------------------------
 +- Speedup of the base64 decoder.
 +- One of the two source browsers has been removed from the web pages.
 +  The doxygen API reference still contains an HTML version of each
 +  source file.
 +- Two race conditions in para_server have been fixed.
++- ls -p is now deprecated in favor of -F or -b. See the help text of
++  the ls command for details.
 +
 +Download: [tarball](./releases/paraslash-git.tar.bz2)
 +
  ---------------------------------------
  0.5.6 (2016-07-10) "cascading gradient"
  ---------------------------------------