Update to 0.5.4

Author: KlausBlum

update/release-notes.txt

@@ -1,9 +1,14 @@
-OOoLilyPond 0.5.3 Release Notes (March 2017)
+OOoLilyPond 0.5.4 Release Notes (April 2017)
 =============================================
 
 Hint: If you tried to download the update via the extension manager and got a "403 Forbidden" error message, just try once more.
 
 
+Changes to OOoLilyPond 0.5.4 since 0.5.3:
+
+* [SVG] templates are prepared to support the new texgyre*.otf fonts
+
+
 Changes to OOoLilyPond 0.5.3 since 0.5.2:
 
 * for Windows users: better estimate for program files folder on 64bit systems