Avoid adding to the changelog executable files added by the second parent. This was a regression introduced by b51a8138292a.

avoid double slash problem mentioned in issue695

clone: remove "file://" before making the path absolute This avoids writing bogus paths to .hgrc. Fixes issue695.

pull -u: if "url#rev" was given, update to rev

clone: if "url#rev" was given, update to rev

parseurl: also return the revision after the "#"; add a test