finished post unit tests; added pool/tag alias/tag implication stub code

test/factories/pool.rb

@@ -0,0 +1,5 @@
+Factory.define(:pool) do |f|
+  f.name {Faker::Name.first_name}
+  f.creator {|x| x.association(:user)}
+  f.description {Faker::Lorem.sentences}
+end