PHP Mode for Emacs Code

Fix typos and fill long paragraphs. Add
maintainer comment near top of file. Correct maintainer email
address with working address.
(Introduction): Add index entry for M-x php-mode-version.
(Installation): New section.
(Editing): Change concept index entry of fill-column to a variable
index entry.
(Completion): Add index entry for M-x visit-tags-table, and M-x
customize-variable.
(Index Menu): Finish maintainer comments on Imenu. "Functions"
sub-menu is now named "All Functions". Document new sub-menus
"Public methods", "Private methods", "Protected methods". Add
index entry for M-x customize-variable.
(Customization): Add index entry for M-x customize-group.
(Embedded HTML): Add index entry for M-x html-mode and M-x
html-mode.
(Contributors): Add Dias Badekas.
(Concept Index): Add maintainer notes on indexing.

(php-imenu-generic-expression)
(php-beginning-of-defun-regexp): Fix regular expression that is
failing to match identifiers in function definitions for Imenu and
add-change-log commands.
(php-keywords): Remove "private" since its handled like
"protected" and "public", not as a generic keyword.
(php-font-lock-keywords-1): The use of grouping in the regular
expression for php-constants and php-keywords added on 2008-04-12
requires referencing the group number to highlight, otherwrise the
entire match is highlighted.

(php-imenu-generic-expression)
(php-block-stmt-1-kwds, php-block-stmt-2-kwds)
(php-block-stmt-1-key, php-block-stmt-2-key)
(php-class-decl-kwds, php-class-key): Move some definitions to
earlier in the file to avoid "free variable" warnings on byte
compilation.
(php-tags-key) Change to defvar for byte compilation error with
php-tags.

Add link to php-mode-init.el at Fedora.
Add link to Sacha Chua's blog post on php-mode.

Fix formatting of 2008-04-06 entry in ChangeLog.

(php-imenu-generic-expression): Support abstract, final, static,
public, private and protected keywords in Imenu.

(php-check-html-for-indentation, defun-prompt-regexp)
(php-class-key): Make regular expressions consistent for
whitespace characters by using "\s-".

(php-check-html-for-indentation): Change regular
expression for indentation warning to match only HTML at the
*beginning* of the line.

(php-constants): Add date and time constants of PHP.
Submitted by Dias Badekas.

Move the "Manual" section into the "Latest release" section.