Do not hide document byline viewlet by default

It is controled by the Allow anyone to view 'about' information option in the Security Settings of Site Setup.

CHANGES.rst

@@ -27,6 +27,10 @@ New:
 
 Fixes:
 
+- Do not hide document byline viewlet by default;
+  it is controled by the `Allow anyone to view 'about' information` option in the `Security Settings` of `Site Setup` (closes `#1556`_).
+  [hvelarde]
+
 - Removed docstrings from some methods to avoid publishing them.  From
   Products.PloneHotfix20160419.  [maurits]
 
@@ -63,7 +67,7 @@ Fixes:
 
 - Do not hard-code baseUrl in bundle to avoid bad URL when switching domains.
   [ebrehault]
-  
+
 - fix typo and comma splice error in HTML filtering control panel [tkimnguyen]
 
 
@@ -1280,3 +1284,4 @@ Fixes:
 .. _`#1053`: https://github.com/plone/Products.CMFPlone/issues/1053
 .. _`#1232`: https://github.com/plone/Products.CMFPlone/issues/1232
 .. _`#1255`: https://github.com/plone/Products.CMFPlone/issues/1255
+.. _`#1556`: https://github.com/plone/Products.CMFPlone/issues/1556

Products/CMFPlone/profiles/default/viewlets.xml

@@ -38,7 +38,4 @@
   <hidden manager="plone.belowcontent" skinname="Plone Default">
     <viewlet name="plone.manage_portlets_fallback"/>
   </hidden>
-  <hidden manager="plone.belowcontenttitle" skinname="Plone Default">
-    <viewlet name="plone.belowcontenttitle.documentbyline" />
-  </hidden>
 </object>