Revert my change to use collection_size_type/version_type throughout

Boost.Serialization; I had missed that this actually changes by binary
format.


[SVN r62032]

libs/serialization

@@ -1 +1 @@
-Subproject commit 73dc16850d501c58e081639121e53d99985599aa
+Subproject commit 7d977f68e0e2f0ba56e5a49e5c942bad232cfc32