io.c: use local variables instead of struct members

* io.c (copy_stream_body): move src_io and dst_io back to top level
  and use instead of stp->src and stp->dst.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43158 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
NEWS: timeout

* NEWS (Stdlib updates): uptdate of timeout.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43159 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2013-10-07

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43160 b2dd03c8-39d4-4d8f-98ff-823fe69b080e