Following up on our dependency calculation updates on Windows, resolve an 1.9
regression on our use of libintl, which only shows up when using a shared
library build combined with intl support.

* build/generator/gen_win.py
  (get_win_lib_dirs,
   get_win_libs): Reintroduce automatic linkage to libintl.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1571671 13f79535-47bb-0310-9956-ffa450edef68