update for 8.6.0-beta2 release

Author: jmckenna

en/mapfile/class.txt

@@ -95,7 +95,7 @@ EXPRESSION [string]
    :name: mapfile-class-fallback
 
 FALLBACK [true|false]
-    .. versionadded:: 8.6
+    .. versionadded:: 8.6.0
 
     Specifies whether the class should act as a fallback class. Default is false.
     A fallback class is applied if and only if none of the previously

en/mapfile/identify.txt

@@ -7,7 +7,7 @@
  IDENTIFY
 *****************************************************************************
 
-.. versionadded:: 8.6
+.. versionadded:: 8.6.0
 
 Controls how vector features are identified, typically through WMS GetFeatureInfo
 or MODE=QUERY requests.

en/mapfile/layer.txt

@@ -723,7 +723,7 @@ HEADER [filename]
 .. _layer-identify:
 
 :ref:`IDENTIFY`
-    .. versionadded:: 8.6
+    .. versionadded:: 8.6.0
 
     Signals the start of an :ref:`IDENTIFY` object.