Fix for sf # 749210, wininst isn't build correctly after building zip.

The problem was that subcommands were not reinitialized.

Bugfix candidate, will backport myself.

command/bdist_wininst.py

@@ -100,7 +100,7 @@ class bdist_wininst (Command):
         if not self.skip_build:
             self.run_command('build')
 
-        install = self.reinitialize_command('install')
+        install = self.reinitialize_command('install', reinit_subcommands=1)
         install.root = self.bdist_dir
         install.skip_build = self.skip_build
         install.warn_dir = 0