Added UserTeam core models (team and m-t-m relationships) and updated other models

db/migrate/20121219183753_create_user_teams.rb

@@ -0,0 +1,11 @@
+class CreateUserTeams < ActiveRecord::Migration
+  def change
+    create_table :user_teams do |t|
+      t.string :name
+      t.string :path
+      t.integer :owner_id
+
+      t.timestamps
+    end
+  end
+end