[PATCH 7 of 7 evolve-ext] exthelper: update documentation with some examples for using registrar aliases

[Matt Harbison]

On Thu, 03 Jan 2019 00:30:54 -0500, Matt Harbison <mharbison72 at gmail.com>  
wrote:

> # HG changeset patch
> # User Matt Harbison <matt_harbison at yahoo.com>
> # Date 1546491714 18000
> #      Thu Jan 03 00:01:54 2019 -0500
> # Node ID a0b03d4cda7acec8e544e7c68041e876515c7dad
> # Parent  0579af34a326c7a8d88aac713202bb6e90436bae
> exthelper: update documentation with some examples for using registrar  
> aliases

This syncs up with what's currently in default in the hg repo.  The tests  
on Windows are in sad shape, so I didn't make it through all of them.  But  
hopefully any problems are trivially fixable.  It looks like the revsets  
are being registered (I manually tried):

     ../../hg/hg.exe --config extensions.evolve=../hgext3rd/evolve help  
revsets.troubled

But it looks like the templates may not be registered.  I also didn't try  
older versions of Mercurial.

I don't think there is much left to do- the only potential issues I found  
were:

   1) the inability to wrap functions in an extension like a command in an  
extension can be wrapped
   2) no simple way to skip @eh.uisetup for a non local repo.

Maybe the latter isn't that important.  And it doesn't seem like evolve  
needs either, so maybe that can be only for upstream, if needed.