added verification token model and updated user model to include set password method, also added secret class method on Site mode to memcache site secret (since it never changes)
added verification token model and updated user model to include set password method, also added secret class method on Site mode to memcache site secret (since it never changes)

webspinner/webspinner-gae-cms,webspinner/webspinner-gae-cms,webspinner/webspinner-gae-cms,webspinner/webspinner-gae-cms