largefiles: allow use of urls with #revision

largefiles tried to create a peer directly with the specified url. That caused
  abort: unsupported URL component: "..."
if a revision was specified in the url.

The branch name do not matter for largefiles' use of remote peers. Largefiles
will be shared among all branches anyway.

hgext/largefiles/basestore.py

@@ -165,6 +165,7 b' def _openstore(repo, remote=None, put=Fa'
             path = ''
             remote = repo
         else:
+            path, _branches = hg.parseurl(path)
             remote = hg.peer(repo, {}, path)
 
     # The path could be a scheme so use Mercurial's normal functionality

tests/test-largefiles.t

@@ -1619,7 +1619,7 b' Push a largefiles repository to a served'
   >   --config 'web.allow_push=*' --config web.push_ssl=False
   $ cat hg.pid >> $DAEMON_PIDS
   $ rm "${USERCACHE}"/*
-  $ hg push -R r8 http://localhost:$HGPORT2
+  $ hg push -R r8 http://localhost:$HGPORT2/#default
   pushing to http://localhost:$HGPORT2/
   searching for changes
   searching for changes
@@ -1632,8 +1632,7 b' Push a largefiles repository to a served'
 
 Clone over http, no largefiles pulled on clone.
 
-  $ hg clone http://localhost:$HGPORT2/ http-clone -U
-  requesting all changes
+  $ hg clone http://localhost:$HGPORT2/#default http-clone -U
   adding changesets
   adding manifests
   adding file changes