Fixed a bug discovered by Mitchell Peabody. In some instances trying to

deserialize a std::vector would fail to compile.

--HG--
extra : convert_revision : svn%3Afdd8eb12-d10e-0410-9acb-85c331704f74/trunk%403482

dlib/serialize.h

@@ -510,7 +510,7 @@ namespace dlib
 
     template <typename T, typename alloc>
     void deserialize (
-        std::vector<T>& item,
+        std::vector<T,alloc>& item,
         std::istream& in
     );