release: 1.3.30

release: 1.3.30

===========

* Report type errors for \property. Helps with converting 1.2 input

* Use Scheme for Align_element; fixed graceAlignPosition
and removed \property alignmentReference in the process.

* Use generic properties for lyrics too.  This fixes \property
Lyrics.textStyle

* Add relative distance for constraints between non-column items.

* Automatic \marks: use "\mark ; ". The mark numbers or letters are
increased automatically.

* Translators now only change properties of their own context. This
removes the 2nd argument to Translator::get_property()

* Bugfix for Metapost mode

1.3.29.