vref: add something that 71f0fd0 accidentally lost
vref: third rewrite.

(I think it's the 3rd.  Can't remember now)
DEFAULT_ROLE_PERMS replaced by per repo default.roles option
rolename warning was in the wrong place in the section hierarchy

thanks to Sevein for catching it

(also added TOC; the page is big enough now and has enough sections)
(minor) gitlab no longer uses gitolite
misc little fixes
how to add your own triggers with the new rc format...

plus other related stuff
more misc little fixes
some more fixes
plugins
env vars from options
Add README file that points to emacs major mode for gitolite.conf files.
(minor) point to the emacs stuff from Luis Lloret
cookbook: commands, a couple of example VREFs and some minor fixups...

also removed the stuff about "managing the hooks from gitolite-admin"
cust: simplified intro to localcode and related stuff
rules: simplified read check and deny-rules info
move warnings up, add warning about clobbering update hook and such
misc fixups
repo-specific hooks
Add Mageia project in the list of gitolite users