Added intial test suite for python.el.

* automated/python-tests.el
(python-tests-with-temp-buffer): New macro.
(python-tests-look-at): New function.
(python-tests-look-at-1)
(python-tests-look-at-2)
(python-indent-pep8-1)
(python-indent-pep8-2)
(python-indent-pep8-3)
(python-indent-inside-paren-1)
(python-indent-inside-paren-2)
(python-indent-after-block-1)
(python-indent-after-block-2)
(python-indent-dedenters-1)
(python-indent-after-backslash-1)
(python-indent-after-backslash-2)
(python-nav-beginning-of-defun-1)
(python-nav-beginning-of-defun-2)
(python-nav-end-of-defun-1)
(python-nav-end-of-defun-2)
(python-nav-beginning-of-statement-1)
(python-nav-end-of-statement-1)
(python-nav-forward-statement-
(python-nav-backward-statement-1)
(python-nav-backward-statement-2)
(python-nav-beginning-of-block-1)
(python-nav-end-of-block-1)
(python-nav-forward-block-1)
(python-nav-lisp-forward-sexp-safe-1)
(python-nav-forward-sexp-1)
(python-nav-forward-sexp-2)
(python-nav-forward-sexp-3)
(python-nav-up-list-1)
(python-nav-backward-up-list-1)
(python-imenu-prev-index-position-1)
(python-info-current-defun-1)
(python-info-current-defun-2)
(python-info-current-defun-3)
(python-info-current-symbol-1)
(python-info-current-symbol-2)
(python-info-current-symbol-3)
(python-info-statement-starts-block-p-1)
(python-info-statement-starts-block-p-2)
(python-info-statement-ends-block-p-1)
(python-info-statement-ends-block-p-2)
(python-info-beginning-of-statement-p-1)
(python-info-beginning-of-statement-p-2)
(python-info-end-of-statement-p-1)
(python-info-end-of-statement-p-2)
(python-info-beginning-of-block-p-1)
(python-info-beginning-of-block-p-2)
(python-info-end-of-block-p-1)
(python-info-end-of-block-p-2)
(python-info-closing-block-1)
(python-info-closing-block-2)
(python-info-line-ends-backslash-p-1)
(python-info-beginning-of-backslash-1)
(python-info-continuation-line-p-1)
(python-info-block-continuation-line-p-1)
(python-info-block-continuation-line-p-2)
(python-info-assignment-continuation-line-p-1)
(python-info-assignment-continuation-line-p-2)
(python-info-looking-at-beginning-of-defun-1)
(python-info-current-line-comment-p-1)
(python-info-current-line-empty-p)
(python-util-goto-line-1)
(python-util-clone-local-variables-1)
(python-util-forward-comment-1): New tests.
* progmodes/python.el (python-info-current-defun): Enhance
match-data cluttering prevention.
Remove package not updated in 10 years.
ChangeLog fix
* lisp/isearch.el (isearch-lazy-highlight-new-loop):
Set `isearch-lazy-highlight-start' and `isearch-lazy-highlight-end'
to `isearch-other-end' if it is not nil. 

* lisp/replace.el (replace-highlight): Let-bind `isearch-other-end'
to `match-beg'.

* lisp/textmodes/ispell.el (ispell-highlight-spelling-error-overlay):
Let-bind `isearch-other-end' to `start', `isearch-forward' to t
and `isearch-error' to nil.
Port to Texinfo 5.0 by backporting trunk bzrs 111300 and 111840.
* doc/misc/flymake.texi (Syntax check statuses): Fix multitable continued rows.
Improve instructions in etc/DEBUG, per bug #13775.
* ack.texi, emacs.texi (Acknowledgments): Small updates