New SVN Wiki page

[Giovanni Bajo]

Hello,

I have rehauled http://gcc.gnu.org/wiki/SvnHelp. I'm almost done with it
(should be ready tomorrow), but only a few things are missing now. I believe
I have integrated all the issues raised during the past week in the mailing
list. Also, I have added new information (especially for branch
maintaieners), and reorganized information so that they are hopefully easier
to find.

Let me know if I have missed something. Feel free to fix typos and rephrase
my bad English, but I'd like to know if you plan on adding something
substantial, so to find the best place to put it and not to duplicate
information.

Thanks,
-- 
Giovanni Bajo