[#48] Honor window size during bulk send, not only max len of response.

git-svn-id: http://svn.code.sf.net/p/jbidibc/code@940 87107999-b52a-42af-a34b-1e85ba8a0939
[#72] Allow to keep track of the port configuration status.

git-svn-id: http://svn.code.sf.net/p/jbidibc/code@941 87107999-b52a-42af-a34b-1e85ba8a0939