* src/Changes.cpp:
* src/support/userinfo.cpp:
* src/Paragraph.cpp:
* src/Changes.h:
* src/Buffer.cpp:
* src/Paragraph.h:
* src/BufferParams.cpp: do not save the name of authors
in LyX documents, who have not made a single change in
change tracking mode
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@19019 a592a061-630c-0410-9148-cb99ea01b6c8