don't re-issue timeout in http_connection when aborting

git-svn-id: http://libtorrent.googlecode.com/svn@10356 f43f7eb3-cfe1-5f9d-1b5f-e45aa6702bda
fix build with verbose logging

git-svn-id: http://libtorrent.googlecode.com/svn@10357 f43f7eb3-cfe1-5f9d-1b5f-e45aa6702bda
regenerate documentation

git-svn-id: http://libtorrent.googlecode.com/svn@10358 f43f7eb3-cfe1-5f9d-1b5f-e45aa6702bda
update comments

git-svn-id: http://libtorrent.googlecode.com/svn@10359 f43f7eb3-cfe1-5f9d-1b5f-e45aa6702bda