merged unit test from RC_1_0

git-svn-id: http://libtorrent.googlecode.com/svn/trunk@10305 f43f7eb3-cfe1-5f9d-1b5f-e45aa6702bda
optimize peer classes a bit

git-svn-id: http://libtorrent.googlecode.com/svn/trunk@10308 f43f7eb3-cfe1-5f9d-1b5f-e45aa6702bda