* parser.yy: Guile > 1.4 compilation fix; scm_unprotect_object is deprecated.
+1.5.10.hwn1
+===========
+
+* Rational bugfix.
+
+* Cleaned up definitions of SystemStartDelimiter
+
+* WTK fix.
+
+* Porrectus patch (Juergen Reuter):
+
+- Syntax change: \porrectus -> \~
+- New porrectus properties: porrectus-width, line-thickness.
+- Bugfix: left<->right confusion in porrectus-engraver.cc.
+- Bugfix: Box dimensions for horizontal slope molecule in porrectus.cc.
+- Enhanced mensural style porrectus shape, considering optical
+ illusion in vertical endings due to slope. Simplified drawing.
+- Code clean-up.
+
1.5.10
======
* Bugfix: stepmake: don't go building executables all over the place,
if NAME is set in environment. Some cleanups.
-
* add-html-footer.py: remove href to self. Substitute @at-variables@
defined in html comments. Any occurrence of