vcs: Fix slides. Cleaned up slides, based on the new hand-out. Removed all the commands and outputs and details of the files being changed, etc. All these details are to be shown, hands-on, on the terminal.

Richard Stallman%rms%GNU Project
Eric Raymond%ESR%Jargon File
Ian Murdock% %Debian
Lawrence Lessig% %Creative Commons
Linus Torvalds% %Linux Kernel
Guido van Rossum%BDFL%Python
Larry Wall% %Perl