Rename changelog.md to all capitals

The basic files in root often use all capitals, as is already used for
readme and manifest.

Related pwr-Solaar#2273

MANIFEST.in

@@ -1,3 +1,3 @@
-include COPYRIGHT COPYING README.md ChangeLog.md lib/solaar/version lib/solaar/commit
+include COPYRIGHT COPYING README.md CHANGELOG.md lib/solaar/version lib/solaar/commit
 recursive-include rules.d *
 recursive-include share/locale *

RELEASE.md

@@ -8,7 +8,7 @@ candidates (ex. `1.0.0rc1`). Release candidates must have a `rcX` suffix.
 Release routine:
 
 - Update version in `lib/solaar/version`
-- Add release changes to `ChangeLog.md`
+- Add release changes to `CHANGELOG.md`
 - Add release information to `share/solaar/io.github.pwr_solaar.solaar.metainfo.xml`
 - Create a commit that starts with `release VERSION`
 - Push commit to Solaar repository

release.sh

@@ -88,7 +88,7 @@ echo
 [[ ! $REPLY =~ ^[Yy]$ ]] && echo 'Release aborted.' && exit 1
 
 # Check if version is in the changelog
-grep '^# '"$version" ChangeLog.md >/dev/null
+grep '^# '"$version" CHANGELOG.md >/dev/null
 [ $? -ne 0 ] && echo 'Error: Version is not present in the changelog' && exit 1
 
 # Check for uncommitted changes
@@ -125,7 +125,7 @@ echo 'Creating tag...'
             [ "$line" == "# $version" ] && found=yes || found=no
         fi
         [ "$found" == 'yes' ] && [ "${line:0:1}" == '*' ] && echo "$line"
-    done < ChangeLog.md
+    done < CHANGELOG.md
 } > /tmp/solaar-changelog
 [ -z "$DRY_RUN" ] && git tag -s $version -F /tmp/solaar-changelog >/dev/null || true
 [ $? -ne 0 ] && echo -e '\nError: Failed to create tag' && exit 1