ox-html.el: Add version and package-version to some options

* ox-html.el (org-html-format-drawer-function)
(org-html-format-headline-function)
(org-html-format-inlinetask-function)
(org-html-creator-string): Add version and package-version.

Thanks to Jambunathan for reporting problems in this area.

lisp/ox-html.el

@@ -583,6 +583,8 @@ in order to mimic default behaviour:
   \"Format a drawer element for HTML export.\"
   contents\)"
   :group 'org-export-html
+  :version "8.0"
+  :package-version '(Org . "8.0")
   :type 'function)
 
 ;;;; Footnotes
@@ -636,6 +638,8 @@ TAGS      the tags (string or nil).
 
 The function result will be used in the section format string."
   :group 'org-export-html
+  :version "8.0"
+  :package-version '(Org . "8.0")
   :type 'function)
 
 ;;;; HTML-specific
@@ -664,6 +668,8 @@ The function must accept six parameters:
 
 The function should return the string to be exported."
   :group 'org-export-html
+  :version "8.0"
+  :package-version '(Org . "8.0")
   :type 'function)
 
 ;;;; LaTeX
@@ -1121,6 +1127,8 @@ like that: \"%%\"."
   "Information about the creator of the HTML document.
 This option can also be set on with the CREATOR keyword."
   :group 'org-export-html
+  :version "24.4"
+  :package-version '(Org . "8.0")
   :type '(string :tag "Creator string"))
 
 ;;;; Template :: Preamble