Remove docs dir (putting another project/repo) and node2,3,4 dirs

docs/SlyEdit_DD_Message_Lister_notes.txt

docs/SlyEdit_ReadMe.txt

docs/SlyEdit_Upgrading.txt

docs/_borders/bottom.htm

docs/_borders/top.htm

docs/adding_nodes.html

docs/appendix.html

docs/baja.html

docs/baja2new.txt

docs/chat_section.html

docs/copyright.html

docs/credits.html

docs/customization.html

docs/default.htm

docs/dove-net.txt

docs/dyndns.txt

docs/external_programs.html

docs/features.html

docs/file_section.html

docs/files.ref