Adjust version numbers of unreleased changes

* lisp/org-table.el (org-table-shrunk-column-indicator):
* lisp/org.el (org-startup-shrink-all-tables): Update Org version to 9.2
and Emacs version to 27.1.
(customize-package-emacs-version-alist): Map Org 9.2 to Emacs 27.1.

Emacs 26.1 is now in the pretest phase, and the version for Emacs's
development branch is 27.1.

lisp/org-table.el

@@ -426,8 +426,8 @@ prevents it from hanging emacs."
   "String to be displayed in a shrunk column."
   :group 'org-table-editing
   :type 'string
-  :version "26.1"
-  :package-version '(Org . "9.1")
+  :version "27.1"
+  :package-version '(Org . "9.2")
   :safe (lambda (v) (and (stringp v) (not (equal v "")))))
 
 (defconst org-table-auto-recalculate-regexp "^[ \t]*| *# *\\(|\\|$\\)"

lisp/org.el

@@ -1028,8 +1028,8 @@ the following lines anywhere in the buffer:
    #+STARTUP: shrink"
   :group 'org-startup
   :type 'boolean
-  :version "26.1"
-  :package-version '(Org . "9.1")
+  :version "27.1"
+  :package-version '(Org . "9.2")
   :safe #'booleanp)
 
 (defcustom org-startup-with-inline-images nil
@@ -5559,7 +5559,8 @@ The following commands are available:
 		   ("8.2.7" . "24.4")
 		   ("8.3" . "26.1")
 		   ("9.0" . "26.1")
-		   ("9.1" . "26.1")))
+		   ("9.1" . "26.1")
+		   ("9.2" . "27.1")))
 
 (defvar org-mode-transpose-word-syntax-table
   (let ((st (make-syntax-table text-mode-syntax-table)))