Clean-up on every code file
	rename directories (bb -> unb)
	rename functions where appropriate (public, common etc.) (#160)
		use CapsName way for all functions
	rename files where appropriate (editor.js)
	$TABLE['msg'] -> $TABLE['ann']
	re-organise global variable names into a single $UNB array
		$abbc_cfg -> $ABBC['Config']
		$abbc_smileys -> $ABBC['Smilies']
		$abbc_tags -> $ABBC['Tags']
		$attach_path -> AttachPath
		$avatar_path -> AvatarPath
		$CFG -> Config (?)
		$CHARSET -> CharSet
		$CONFFILE -> ConfigFile (?)
		$CSSFILE -> CssFile
		$db -> Db
		$DEFLANG -> DefaultLang
		$DESIGN -> Design
		$design_path -> DesignPath
		$extra_count -> ProfileExtraCount
		$extra_names -> ProfileExtraNames
		$HOOK -> Hook
		$ICON -> ActionLinksIcon
		$IMG -> Image
		$INSTALLING -> Installing
		$LANG -> Lang
		$libpath -> LibraryPath
		$LoginUserGroups -> LoginUserGroups
		$LoginUserID -> LoginUserID
		$LoginUserName -> LoginUserName
		$LoginUser -> LoginUser
		$logpath -> LogPath
		$ME -> ThisPage
		$MODULE -> Module
		$NEWLAYOUT -> HorizLayout
		$NODB -> NoDb
		$photo_path -> PhotoPath
		$show_sql -> ShowSql
		$SHOWHIDECODE -> ShowHideCode
		$TABLE -> Table
		$TEXTONLY -> TextOnly
		$TEXT -> ActionLinksText
		$TIMEZONE -> Timezone
		$VERSIONTIME -> VersionTime
		$VERSIONUPGRADE -> VersionUpgrade
		$VERSION -> Version
		$PostsPerForum
		$ThreadsPerForum
		$NewForums
		$PostsByUser
		$PostsByThread
		$ThreadIconsLegend
		$ACL -> ACL
		$plugpath -> PlugInPath
		$CONTTYPE -> ContentType
		$page_rel_links -> PageRelLinks
		$forum_order -> ForumOrder
		$subforums -> Subforums
		$user_cache -> UserCache
		$forum_cache -> ForumCache
		$thread_cache -> ThreadCache
		$session_inactive -> SessionInactive
		$session_netmask -> SessionNetMask
		$T -> $UNB_T
		$prog_id -> rc('prog_id')
	sort all files' "global" statements' variables
	update all files' comment to (c) 2005
	use new client info library
		replace all $host_*
	tidy up with $UNB['Config'] (former $CFG) usage
		frm_* -> $UNB['Frame*']
		enable_icq -> rc('enable_icq')
		enable_jabber -> rc('enable_jabber')
		languages -> $UNB['AllLangs']
		language_names -> $UNB['AllLangNames']
		forum_separator -> $UNB['Design']['ForumSeparator']
		plugins -> $UNB['PlugIns']
	every language include must accept "-" in filenames
	"the board setup is locked" -> +"remove the file lock.conf to unlock it"
	rename *.ex to *.example
	try to make the entire code caller-path independant
	rename images where appropriate
	replace numeric bitmask constants by named constants as for UFF_*
			again, use UNB_* here (rename UFF_* and ULF_* to UNB_...)
		announcement options
		forum flags
		post flags
		thread options
		notify options (public.lib.php)
	rename JavaScript functions where appropriate
	give SESSION and COOKIE variables unique names
		<- combine uid+pass cookies!
	session.lib: rename md5edpassword to hashedpassword
	add "type="image/x-icon"" to favicon rel-link
	write comments on every function, its purpose, parameters and output
	rename function db_encode (in database.lib) to UnbDbEncode
	DB: Users.Extra?.Type = carchar(255) statt (100)
		+change Users.Password column to varchar(200) to be able to store any password format
	add more password hash functions, maybe create an option for it
		compatibility vs extensability:
			prepend all new passwords with {<hash-type>}. but also recognise current scheming for 2 or 3 versions
		md5, keyed-md5, sha1, plain(!)
	rename database column AnnounceRead.Msg to .Announce
	change [quote] HTML code to use <blockquote> and enable it in RSS feeds
		http://newsboard.unclassified.de/379
	Bild nicht geladen: "[Not loaded]" -> "[Image not loaded]"
	change all read/write-access class functions ->
		to handle loading of an object or determining the current ID to work the same way
		Set functions:
			optional id parameter at the end, if not null, only change foreign record and don't update own values
		Change functions:
		Remove functions:
	move all parameter checking into the API class functions (#153)
	Call UnbForwardHTML with not-html-quoted URL, but quote it in the UnbForwardHTML function
		sid function needs to return plain text instead of HTML
			this causes trouble with all other links, fix them
		Write UnbLink function that builds links in a sensible way
			Replace all links in the entire board with the UnbLink function
				regex-search for: \$UNB\['ThisPage'\]|\$UNB\['Module'\]|<a|UnbForwardHTML
				UnbListThreads($get) und UnbListPosts($get) -> als array übergeben?
					da wo es vorkommt, die arrays dann zusammenführen. ist ja nur der page-select-code (in eigene funktion!)
			remove PD constant
			remove sid function and replace sid(4) by UnbFormSessionId()
			reduce UnbUrlGetKey to parameter 4 and omit that parameter
		finish #171 (utf8 import) (would need old sid()-style links...)
		move page-selection code into a separate function(min, max, curr, get-params-array)
		ignore derefer request if there is no session id in the current page URL
	remove home_url setting from installer
	smilies definitions have no image dimensions stored
	move functions to other files where appropriate (mostly public/common libs)
		re-think the sense of the public library - is it really used?
			common.lib -> common_out.lib
			public.lib -> common.lib, plugin.lib
	full database abstraction (#163)
		remaining IDatabase.Exec() calls are:
			dumpdb.inc (various MySQL-specific calls)
			stat.inc (table status)
			thread.inc (insert into select)
	@ before require() or include() suppresses any parse error in that file
		we disable error output anyway, so remove all those @s again! better for code debugging
	auto-determine Apache mod_rewrite module at install-time and enable short URLs
		also conditionally use RewriteRule and Expires* directives in .htaccess file with <IfModule>