Fixes #1658 - Removes all user notifications regarding login due

to redundancy and adds a helptip style message on the dashboard
for users without access to any organizations to let them know what
their next steps are.

![user_no_perms_notice](https://f.cloud.github.com/assets/293363/238510/92b25b7c-883a-11e2-86ea-3041bf13e94d.png)