Update the versions (python,rocksdb) pyrocksdb 0.4 was tested with.

docs/changelog.rst

@@ -3,6 +3,7 @@ Changelog
 
 Version 0.4
 -----------
+This version works with RocksDB v3.12.
 
 * Added :py:func:`repair_db`.
 * Added :py:meth:`rocksdb.Options.row_cache`

docs/index.rst

@@ -11,7 +11,7 @@ Python bindings to the C++ interface of http://rocksdb.org/ using cython::
     print db.get(b"a")
 
 
-Tested with python2.7 and python3.3 and RocksDB version 3.11
+Tested with python2.7 and python3.4 and RocksDB version 3.12
 
 .. toctree::
     :maxdepth: 2