added rake task to clear and re-seed the database on schedule

db/migrate/20110808220246_create_posts_table.rb

@@ -1,7 +1,7 @@
 class CreatePostsTable < ActiveRecord::Migration
   def self.up
     create_table :posts, :force => true do |t|
-      t.text   :body
+      t.text     :body
       t.integer  :forum_id
       t.integer  :topic_id
       t.integer  :user_id

db/schema.rb

@@ -33,7 +33,7 @@ ActiveRecord::Schema.define(:version => 20110808221332) do
   end
 
   create_table "posts", :force => true do |t|
-    t.string   "body"
+    t.text     "body"
     t.integer  "forum_id"
     t.integer  "topic_id"
     t.integer  "user_id"