Better favicon support on current browsers.
Added another favicon meta header.
Some fixes.
Merge pull request #121 from ernstchan/minor-changes

Minor changes
Merge pull request #120 from ernstchan/favicon

Favicon
Post deletion timeout.
Merge pull request #122 from ernstchan/delete-timeout

Post deletion timeout.
return 404 on not existing posts

quick and dirty hack to return status 404 not found instead of 200 ok on deceased posts/threads
not specifying charset fucks up umlaut display
force ssl and only one host
use global defined constant CHARSET instead of hardcoded values
Enforced correct file extensions for internal typesand changed handling of multiple file uploads. Do not display IP of admin posts. Changes to favicon display. Changes to captcha display. Prepared removal of localized strings from wakaba3.js.