docs: remove warning labels.

docs/ansible.rst

@@ -5,15 +5,15 @@ Ansible Extension
 .. image:: images/ansible/cell_division.png
     :align: right
 
-An experimental extension to `Ansible`_ is included that implements host
-connections over Mitogen, replacing embedded shell invocations with pure-Python
-equivalents invoked via highly efficient remote procedure calls tunnelled over
-SSH. No changes are required to the target hosts.
+An extension to `Ansible`_ is included that implements host connections over
+Mitogen, replacing embedded shell invocations with pure-Python equivalents
+invoked via highly efficient remote procedure calls tunnelled over SSH. No
+changes are required to the target hosts.
 
-The extension isn't nearly in a generally dependable state yet, however it
-already works well enough for testing against real-world playbooks. `Bug
-reports`_ in this area are very welcome – Ansible is a huge beast, and only
-significant testing will prove the extension's soundness.
+The extension is approaching a generally dependable state, and works well for
+many real-world playbooks. `Bug reports`_ in this area are very welcome –
+Ansible is a huge beast, and only significant testing will prove the
+extension's soundness.
 
 Divergence from Ansible's normal behaviour is considered a bug, so please
 report anything you notice, regardless of how inconsequential it may seem.
@@ -98,8 +98,7 @@ Installation
 
 .. caution::
 
-    Thoroughly review the list of limitations before use, and **do not test the
-    prototype in a live environment until this notice is removed**.
+    Please review the behavioural differences documented below prior to use.
 
 1. Verify Ansible 2.4 and Python 2.7 are listed in the output of ``ansible
    --version``
@@ -123,8 +122,6 @@ Installation
 Limitations
 -----------
 
-This is a proof of concept: issues below are exclusively due to code immaturity.
-
 * Only Ansible 2.4 is being used for development, with occasional tests under
   2.5, 2.3 and 2.2. It should be more than possible to fully support at least
   2.3, if not also 2.2.