Many Minor Fixes

Fixed a whole bunch of minor stuff.
Had a go at getting some of the plethora of broken tests to pass.

app/controllers/file_controller.rb

@@ -1,7 +1,7 @@
 # Controller responsible for serving files and pictures.
 
 require 'zip/zip'
-require 'string_utils'
+require 'sanitize'
 
 class FileController < ApplicationController
 

app/controllers/wiki_controller.rb

@@ -3,7 +3,6 @@ require 'redcloth_for_tex'
 require 'parsedate'
 require 'zip/zip'
 require 'sanitize'
-require 'string_utils'
 
 class WikiController < ApplicationController
 

app/views/wiki/edit.rhtml

@@ -13,7 +13,7 @@
 	             { 'id' => 'editForm', 'method' => 'post', 'onsubmit' => 'cleanAuthorName()',
 	               'accept-charset' => 'utf-8' }) do %>
 	   <div>	
-		<textarea name="content" id="content" rows="24" cols="60"><%= h(@flash[:content] || @page.content.delete("\x01-\x08\x0B\x0C\x0E-\x1F")) %></textarea>
+		<textarea name="content" id="content" rows="24" cols="60"><%= h(flash[:content] || @page.content.delete("\x01-\x08\x0B\x0C\x0E-\x1F")) %></textarea>
 		<div id="editFormButtons">
 			<input type="submit" value="Submit" accesskey="s"/> as 
 			<%= text_field_tag :author, h(@author.delete("\x01-\x08\x0B\x0C\x0E-\x1F")), 

app/views/wiki/new.rhtml

@@ -13,7 +13,7 @@
 	<% form_tag({ :action => 'save', :web => @web.address, :id => @page_name },
 	        { 'id' => 'editForm', 'method' => 'post', 'onsubmit' => 'cleanAuthorName();', 'accept-charset' => 'utf-8' }) do %>
 	
-	    <textarea name="content" id="content" rows="24" cols="60"><%= h(@flash[:content] || '') %></textarea>
+	    <textarea name="content" id="content" rows="24" cols="60"><%= h(flash[:content] || '') %></textarea>
 		<div id="editFormButtons">
 		    <input type="submit" value="Submit" accesskey="s"/> as 
 		    <%= text_field_tag :author, @author,