hgweb: handle exception of misconfigured path on index page
If hgweb.config contains wrong path mapping, hgweb causes internal server
error on repository index page.
This patch changes makeindex() to ignore RepoError, because it looks to be
designed to suppress configuration error.
% test file addition with bad case
adding a
A a
a
% test case collision on rename (issue 750)
adding a
a
committed changeset 0:07f4944404050f47db2e5c5071e0e84e7a27bba9
A: not overwriting - file exists
% test case collision between revisions (issue 912)
adding a
adding A
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
1 files updated, 0 files merged, 1 files removed, 0 files unresolved