tests/test-push-http.out

Fix income/pull with bundle and -R (issue 820).

Uses ui.setconfig() to tell bundlerepo where the main repo is. This is
needed for when the --repository option is used.

Adds tests to test-bundle and a new test script
test-mq-pull-from-bundle, which plays out the situation that initially
made me detect this bug

(hg -R .hg/patches pull ../bundle.hg).

adding a
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
% expect ssl error
pushing to http://localhost/
searching for changes
ssl required
% expect authorization error
pushing to http://localhost/
searching for changes
push not authorized
% expect authorization error: must have authorized user
pushing to http://localhost/
searching for changes
push not authorized
% expect success
pushing to http://localhost/
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
rolling back last transaction
changegroup hook: HG_NODE=ba677d0156c1196c1a699fa53f390dcfc3ce3872 HG_SOURCE=serve HG_URL=remote:http 
% expect authorization error: all users denied
pushing to http://localhost/
searching for changes
push not authorized
% expect authorization error: some users denied, users must be authenticated
pushing to http://localhost/
searching for changes
push not authorized