issue #311: docs: comment out Ansible 2.6 for now.

docs/ansible.rst

@@ -58,7 +58,7 @@ Installation
 ------------
 
 1. Thoroughly review the :ref:`noteworthy_differences` and :ref:`changelog`.
-2. Verify Ansible 2.3-2.6.1 and Python 2.6, 2.7 or 3.6 are listed in ``ansible
+2. Verify Ansible 2.3-2.5 and Python 2.6, 2.7 or 3.6 are listed in ``ansible
    --version`` output.
 3. Download and extract |mitogen_url| from PyPI.
 4. Modify ``ansible.cfg``:

docs/changelog.rst

@@ -15,6 +15,16 @@ Release Notes
     </style>
 
 
+.. comment
+
+    v0.2.3 (2018-07-??)
+    -------------------
+
+    * `#315 <https://github.com/dw/mitogen/pull/315>`_: Mitogen for Ansible is
+      supported under Ansible 2.6. Contributed by `Dan Quackenbush
+      <https://github.com/danquack>`_.
+
+
 v0.2.2 (2018-07-??)
 -------------------
 
@@ -42,10 +52,6 @@ Mitogen for Ansible
   process environment cleanup, caused by the change in v0.2.1 to run local
   tasks with the correct environment.
 
-* `#315 <https://github.com/dw/mitogen/pull/315>`_: Mitogen for Ansible is
-  supported under Ansible 2.6. Contributed by `Dan Quackenbush
-  <https://github.com/danquack>`_.
-
 * `#317 <https://github.com/dw/mitogen/issues/317>`_: respect the verbosity
   setting when writing to to Ansible's ``log_path`` log file, if it is enabled.
   Child log filtering was also incorrect, causing the master to needlessly wake