[PATCH 0 of 5] online help improvements

[Johannes Stezenbach]

Hi,

these five patches make some small improvements to the
online help.

The first three are about special help
topics like date formats, file patterns etc.
(The second and third are a bit large because they move text
from the manual page into the online help and redorder it.)
The special help topics are listed with -v.

The fourth patch allows a subset of the command list
to be displayed, which is useful because with many
extensions installed the list gets rather long
(e.g. 'hg help c')

The fifth patch displays a list of extensions with -v
and provides help for extensions with "help -e" even in
those cases where extension name == command name).
I'm not sure if the latter is really useful but I
guess many people don't know about 'hg help mq', which
is what the extension list addresses.


Johannes