Can't find an "help" feature

For example:
* What are different privileges between different roles?
* How to change user picture?
* How to make another user "Account manager" in addition to me?

This is coming soon. To answer your questions in the meantime:

1. Currently the only difference between roles is that Account Managers and Project Managers have access to the "Project Management" options. All other roles can report bugs, edit them, etc. This will change at some point in the future.

2. Gravatar -> http://en.gravatar.com/

3. There is only one Account Manager. The Account Manager is the "Administrator" of the account. Project Managers have similar permissions, the only thing they can't do is add users to the Organization.