* scripts/lilypond.py: Remove LaTeX titling kludge. Remove page

* scripts/lilypond.py: Remove LaTeX titling kludge.  Remove page
layout tweaking.

* input/les-nereides.ly (theScore): Add \book.

* input/test/title-markup.ly: Add \book.

* scm/page-layout.scm (ly:optimal-page-breaks): Debugging output
only if 'verbose.

* lily/include/paper-book.hh (PAGE_LAYOUT): Remove.

* lily/paper-outputter.cc (output_line): Remove PAGE_LAYOUT check.

* tex/lilyponddefs.tex (lilypondstart, lybox, lyitem):
* scm/output-tex.scm (start-system): Update for page layout by
LilyPond.

* scm/output-ps.scm (start-system): Previously (new-start-system).

* lily/paper-outputter.cc (output_header): Uniquify list of fonts
passed to define-fonts.

* lily/paper-column.cc:
* lily/system.cc (get_line):
* ly/property-init.ly (newpage):
* scm/define-grob-properties.scm:
* scm/output-ps.scm:
* scm/output-tex.scm: Remove between-system-string kludge.

* scm/output-ps.scm (define-fonts, font-command,
font-load-encoding): Handle ENCODING = #f.

* scm/output-tex.scm (output-scopes): Check if variable is bound.