* Documentation/user/dedication.itely,

* Documentation/user/dedication.itely,
Documentation/user/preface.itely,
Documentation/user/introduction.itely: Revised.
Removing leading spaces which distorts output if info files are read
with stand-alone info.
Removing superfluous inter-word spaces which also distorts output
for stand-alone info.

* lily/grob-interface.cc: Adding copyright.
(check_interfaces_for_property): Improve format of warning message.