* Documentation/topdocs/NEWS.texi: Add note about safe mode.

* Documentation/topdocs/NEWS.texi: Add note about safe mode.

* mf/GNUmakefile (FETA_LIST_FILES): Install feta*list.lys too.
This allows building the user manual using a binary installation
and a matching unpacked source tree.

* scm/lily.scm (safe-module): New variable.

* lily/includable-lexer.cc (new_input): Fix error messages.

* lily/parse-scm.cc (internal_ly_parse_scm): Add parameter SAFE.
If SAFE, evaluate in safe-module.  Change callers.

* lily/main.cc (Long_option_init): Reinstate safe-mode.

* lily/lexer.ll (embedded_scm): While processing main-input,
invoke ly_parse_scm with safe mode if running in safe-mode.
(<<EOF>>): Reset main_input_b_, fixes old-relative chech
in init.ly for safe-mode.