hgweb: use the parsed application path directly Previously, we assigned a custom system string with a trailing slash to wsgirequest.url. The addition of the trailing slash felt arbitrary and seems to go against how things typically work in WSGI. We also want our URLs to be bytes, not system strings. And, assigning a custom attribute to wsgirequest felt wrong. This commit fixes all those things by removing the trailing slash from the app path, changing consumers to use that variable and to use it without a trailing slash, and removing the custom attribute from wsgirequest. We preserve the trailing slash on {url}. Also, makebreadcrumb strips the trailing slash. So no change to it was needed. Differential Revision: https://phab.mercurial-scm.org/D2736