merged ssl test keys from RC_1_0

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@10375 a83610d8-ad2a-0410-a6ab-fc0612d85776
fix available() function on ssl_stream

git-svn-id: https://svn.code.sf.net/p/libtorrent/code/trunk@10376 a83610d8-ad2a-0410-a6ab-fc0612d85776