added forum topic/post

test/factories/forum_post.rb

@@ -0,0 +1,4 @@
+Factory.define(:forum_post) do |f|
+  f.creator {|x| x.association(:user)}
+  f.body {Faker::Lorem.sentences}
+end

test/factories/forum_topic.rb

@@ -0,0 +1,6 @@
+Factory.define(:forum_topic) do |f|
+  f.creator {|x| x.association(:user)}
+  f.title {Faker::Lorem.words}
+  f.is_sticky false
+  f.is_locked false
+end