Update relnotes and add release-process.md

doc/release-process.md

@@ -0,0 +1,8 @@
+# SilentDragon Release Process
+
+## High-Level Philosophy
+
+Beware of making high-risk changes too close to a new release, because they will not get as much testing as they should. Don't merge large branches which haven't undergone lots of testing just before a release.
+
+It is best to keep doc/relnotes/README.md up to date as changes and bug fixes are made. It's more work to summarize all changes and bugfixes just before the release.
+

doc/relnotes/README.md

@@ -10,6 +10,15 @@ and no longer on Github, since they banned Duke Leto and
 also because they censor many people around the world and work with
 evil organizations.
 
+# SilentDragon 1.3.1 "XXX"
+
+```
+...
+```
+
+  * Change language at run-time via Settings
+    * This takes effect immediately, no restart needed
+
 # SilentDragon 1.3.0 "Berserk Bonnacon"
 
 ```