Add global config file, PGP signing support

DocKnot now supports a global configuration file.  The default
location is $HOME/.config/docknot/config.yaml, but it honors the XDG
environment variables.  Currently, this configuration file can be used
to set the distribution directory and signing PGP key for docknot
dist.

docknot dist can now optionally sign distribution tarballs with GnuPG
after they have been generated.  To request signing, use the --pgp-key
command-line option or set pgp_key in the new global configuration
file.

The -d option to docknot dist is now optional if distdir is set in
DocKnot's global configuration file.

1 files changed, 16 insertions, 0 deletions

diff --git a/Changes b/Changes
index f716898..1c16a5e 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,21 @@
                        User-Visible DocKnot Changes
 
+DocKnot 4.01 (unreleased)
+
+    DocKnot now supports a global configuration file.  The default
+    location is $HOME/.config/docknot/config.yaml, but it honors the XDG
+    environment variables.  Currently, this configuration file can be used
+    to set the distribution directory and signing PGP key for docknot
+    dist.
+
+    docknot dist can now optionally sign distribution tarballs with GnuPG
+    after they have been generated.  To request signing, use the --pgp-key
+    command-line option or set pgp_key in the new global configuration
+    file.
+
+    The -d option to docknot dist is now optional if distdir is set in
+    DocKnot's global configuration file.
+
 DocKnot 4.00 (2020-12-25)
 
     Change the metadata format to a single YAML file, with a slightly