[MERGE] Don't escape tildes

[Andrew Bennetts]

Jonathan Lange wrote:
> Sick of those irritating %7Es in your URLs? Then land this patch!

bb:tweak

[...]
> === modified file 'bzrlib/urlutils.py'
> --- bzrlib/urlutils.py	2009-01-17 01:30:58 +0000
> +++ bzrlib/urlutils.py	2009-03-11 00:23:46 +0000
> @@ -68,7 +68,7 @@
>          relpath = relpath.encode('utf-8')
>      # After quoting and encoding, the path should be perfectly
>      # safe as a plain ASCII string, str() just enforces this
> -    return str(urllib.quote(relpath))
> +    return str(urllib.quote(relpath, safe='/~'))

Why not use safe=_url_dont_escape_characters?

-Andrew.