various modifications to prevent xss

- validation of names and labels against /^[\w\s\'\-]*$/i
- html entities encoding

git-svn-id: http://redmine.rubyforge.org/svn/trunk@99 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/project.rb

@@ -31,6 +31,7 @@ class Project < ActiveRecord::Base
   validates_presence_of :name, :description
   validates_uniqueness_of :name
   validates_associated :custom_values, :on => :update
+  validates_format_of :name, :with => /^[\w\s\'\-]*$/i
 
   # returns 5 last created projects
   def self.latest