docs: added 4.3.1 release docs

docs/release-notes/release-notes-4.3.1.rst

@@ -0,0 +1,15 b''
+|RCE| 4.3.1 |RNS|
+-----------------
+
+Release Date
+^^^^^^^^^^^^
+
+- 2016-08-23
+
+Fixes
+^^^^^
+
+- Core: fixed database session cleanups. This will make sure RhodeCode can
+  function correctly after database server problems. Fixes #4173, refs #4166
+- Diffs: limit the file context to ~1mln lines. Fixes #4184, also make sure
+  this doesn't trigger Integer overflow for msgpack.
  No newline at end of file

docs/release-notes/release-notes.rst

@@ -9,6 +9,7 b' Release Notes'
 .. toctree::
    :maxdepth: 1
 
+   release-notes-4.3.1.rst
    release-notes-4.3.0.rst
    release-notes-4.2.1.rst
    release-notes-4.2.0.rst