Update to current version. [skip ci]

doc/INSTALL-buildout.rst

@@ -125,8 +125,8 @@ This procedure involves the following steps:
 - Fetch the buildout bootstrap script into the environment.
 
 - Fetch the version files into the environment, for example:
-  https://raw.github.com/zopefoundation/Zope/2.13.26/versions.cfg
-  https://raw.github.com/zopefoundation/Zope/2.13.26/ztk-versions.cfg
+  https://raw.github.com/zopefoundation/Zope/2.13.27/versions.cfg
+  https://raw.github.com/zopefoundation/Zope/2.13.27/ztk-versions.cfg
 
 - Create a buildout configuration as follows:
 

doc/INSTALL-virtualenv.rst

@@ -17,14 +17,14 @@ Create a Virtual Environment
    $ cd z213
 
 
-Install the Zope2 2.13.26 Software Packages
+Install the Zope2 2.13.27 Software Packages
 -------------------------------------------
 
 .. code-block:: sh
 
    $ bin/pip install \
     --no-binary zc.recipe.egg \
-    -r https://zopefoundation.github.io/Zope/releases/2.13.26/requirements.txt
+    -r https://zopefoundation.github.io/Zope/releases/2.13.27/requirements.txt
    Collecting Zope2
    ...
    Successfully installed ...

doc/WSGI.rst

@@ -13,12 +13,12 @@ To run as a WSGI application, you need to install some additional software.
 .. code-block:: sh
 
    $ bin/pip install \
-    --trusted-host download.zope.org \
-    --index http://download.zope.org/Zope2/index/2.13.26/ \
+    --no-binary zc.recipe.egg \
+    -r https://zopefoundation.github.io/Zope/releases/2.13.27/requirements.txt \
     repoze.who repoze.tm2 repoze.retry Paste PasteDeploy PasteScript
    Collecting repoze.who
    ...
-   Successfully installed Paste-1.7.5.1 PasteDeploy-1.3.4 PasteScript-1.7.5 repoze.retry-1.2 repoze.tm2-1.0 repoze.who-2.0
+   Successfully installed ...
 
 
 Update the Zope Application Configuration
@@ -39,7 +39,7 @@ Update the contents as follows.
    instancehome $INSTANCE
 
 .. note::
-   
+
    The ``%define instance /path/to/virtualenv`` element must
    point to the environment:  there is no "relative to this file" support
    built in.
@@ -145,7 +145,7 @@ Finally, configure the WSGI server:
    port = 8080
 
 .. note::
-   
+
    Any server conforming to PEP 333/3333 should work, although the parameters
    could change.
 
@@ -168,7 +168,7 @@ Start the WSGI Server
 
 .. code-block:: sh
 
-   $ bin/paster serve etc/zope.wsgi 
+   $ bin/paster serve etc/zope.wsgi
    Starting server in PID 24934.
    serving on http://127.0.0.1:8080