list out non-core features explicitly
(update doc for 96cc2ea in gitolite.git)
(minor fixups)
make the phrase "hosting user" a link in most places
add update-gitweb-daemon-from-options to docs

also deprecate (in documentation) this:

    config foo.bar =

i.e., allow only

    config foo.bar = ""

The sugar parser for the 'option' line can't deal with it and I decided
it's better to de-emphasise it.

See d8df4a9 (in the gitolite repo) for additional background/history.
user.mkd: add note on URLs
clarify test suite needs a more recent git
make non-core list a bit more visible
new version of mkdoc
added two "documentation map" pictures!
forgot to update perf.mkd after v3.2 fix
some more fixups, esp about roles
guest key management
docfix
docfix
first attempt for ukm

Must improve

    User key management must be enabled by adding something like

        'ukm' => {MYDOMAIN => qr(^SOME-PATTERN$) },

    to the `COMMANDS`.

    Simply adding

        'ukm' => 1,
second attempt for ukm