* tex/GNUmakefile (TEX_FILES): add texinfo.cnf

* tex/GNUmakefile (TEX_FILES): add texinfo.cnf

* stepmake/stepmake/texinfo-vars.make (MAKEINFO): add
--enable-encoding

* Documentation/user/lilypond.tely: add -*- coding: latin-1 -*- everywhere.

* Documentation/user/changing-defaults.itely (Text encoding):
change to latin1.

* Documentation/user/lilypond.tely: add language and encoding.

* scm/define-grobs.scm (all-grob-descriptions): add
line-interface.

* configure.in (PKG_CONFIG_PATH): bump makeinfo version to 4.7

* input/test/ossia.ly: font sizes for ossia.