Merge topic branch t/select- into master

A single patch which implements the new "select -" feature to switch
back to the previous mood or playlist.

* refs/heads/t/select-:
  com_select(): Support '-' to reactivate the previous mood/playlist.

diff --cc NEWS.md
index daec9b6a8900819c7fad20116d3ef9fca0d7aacc,1ed27260e61f39c74b4f41f305755d8a9d0cd9d2..cb1a4a3544730bb6d7f66adbc9e1bc0ab3c8b63d
--- 1/NEWS.md
--- 2/NEWS.md
+++ b/NEWS.md
@@@ -2,12 -2,9 +2,14 @@@ 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.
 +
++Download:
  [tarball](./releases/paraslash-git.tar.xz)
  
  ----------------------------------------

diff --cc afs.c
Simple merge

diff --cc m4/lls/server_cmd.suite.m4
Simple merge