[LH345] stripping trailing slashes from page paths

app/models/page.rb

@@ -61,7 +61,7 @@ class Page < ActiveRecord::Base
 
   has_many :tasks
 
-  before_validation :append_leading_slash_to_path
+  before_validation :append_leading_slash_to_path, :remove_trailing_slash_from_path
   before_destroy :delete_connectors
 
   validates_presence_of :name, :path
@@ -218,6 +218,12 @@ def append_leading_slash_to_path
       self.path = "/#{path}"
     end
   end
+
+  # remove trailing slash, unless the path is only a slash.  uses capture and
+  # substition because ruby regex engine does not support lookbehind
+  def remove_trailing_slash_from_path
+    self.path.sub!(/(.+)\/+$/, '\1') 
+  end
 
   def path_not_reserved
     if Cms.reserved_paths.include?(path)