* lily/scaled-font-metric.cc (derived_mark): idem.

* lily/scaled-font-metric.cc (derived_mark): idem.

* scm/encoding.scm (make-encoding-mapping): change permutation to mapping.

* lily/scaled-font-metric.cc (derived_mark): is a const method.
(Modified_font_metric): make alist for coding_description_
(LY_DEFINE): remove coding-name.

* scm/output-tex.scm (text): remove debugging code.

* lily/scaled-font-metric.cc (ly_font_encoding): return vector

* scm/encoding.scm (read-encoding-file): use symbol for glyph
name.