Removed old text readme in favour of markdown one.

README

-What's in these 'ere folders:
-
-components/
-	PHP components of the site, each drives a separate element - e.g.
-	static content, the library, the help system, etc.
-htdocs/
-	Where all served content is to be found:
-	css/
-		Cascading StyleSheets
-	files/
-		Files for download (e.g. Help examples)
-	images/
-		Images used by the site skin
-	js/
-		JavaScript
-		tinymce/
-			Placeholder dir for TinyMCE, which should not itself
-			be stored in SVN
-	pictures/
-		Images used in the content (e.g. /Help)
-lib/
-	Custom libraries used by the site - e.g. session library
-plugins/
-	Custom Smarty plugins used by the site - e.g. banana drawing
-	function
-static/
-	Static content for the static content components (includes help)
-	fragments/
-		Any HTML fragments used to make up parts of pages (e.g.
-		secondary bars)
-templates/
-	Smarty templates
-templates_c/
-	Compiled Smarty templates - do not use this dir