Fix some bugs uncovered when running the weplay scenarios

lib/webrat.rb

@@ -18,6 +18,10 @@ module ActionController
         @current_page ||= Webrat::Page.new(self)
       end
       
+      def current_page=(new_page)
+        @current_page = new_page
+      end
+      
       # Issues a GET request for a page, follows any redirects, and verifies the final page
       # load was successful.
       #

lib/webrat/field.rb

@@ -102,7 +102,7 @@ module Webrat
   class ButtonField < Field
 
     def matches_value?(value)
-      @element["value"] =~ /^\W*#{value}\b/i
+      @element["value"] =~ /^\W*#{Regexp.escape(value.to_s)}\b*/i
     end
 
     def to_param

lib/webrat/page.rb

@@ -16,6 +16,8 @@ module Webrat
 
       reset_dom
       reloads if @url
+      
+      session.current_page = self
     end
     
     # Verifies an input field or textarea exists on the current page, and stores a value for

lib/webrat/select_option.rb

@@ -7,7 +7,7 @@ module Webrat
     end
     
     def matches_text?(text)      
-      @element.innerHTML =~ /^\W*#{Regexp.escape(text.to_s)}\b/i
+      @element.innerHTML == text.to_s
     end
     
     def choose